775320336 has 300 divisors, whose sum is σ = 2706796620. Its totient is φ = 213373440.

The previous prime is 775320331. The next prime is 775320341. The reversal of 775320336 is 633023577.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (775320331) and next prime (775320341).

It can be written as a sum of positive squares in 2 ways, for example, as 140280336 + 635040000 = 11844^2 + 25200^2 .

It is a super-2 number, since 2×775320336² = 1202243246830305792, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 775320336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775320331) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1841406 + ... + 1841826.

Almost surely, 2^775320336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775320336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1353398310).

775320336 is an abundant number, since it is smaller than the sum of its proper divisors (1931476284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

775320336 is a wasteful number, since it uses less digits than its factorization.

775320336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 79380, while the sum is 36.

The square root of 775320336 is about 27844.5746241525. The cubic root of 775320336 is about 918.6718137546.

Adding to 775320336 its product of nonzero digits (79380), we get a square (775399716 = 27846²).

The spelling of 775320336 in words is "seven hundred seventy-five million, three hundred twenty thousand, three hundred thirty-six".