775023312 has 160 divisors (see below), whose sum is σ = 2427019264. Its totient is φ = 208396800.

The previous prime is 775023311. The next prime is 775023401. The reversal of 775023312 is 213320577.

775023312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×775023312² = 1201322268286898688, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 775023312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (775023311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 384387 + ... + 386397.

Almost surely, 2^775023312 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 775023312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1213509632).

775023312 is an abundant number, since it is smaller than the sum of its proper divisors (1651995952).

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

775023312 is a wasteful number, since it uses less digits than its factorization.

775023312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2097 (or 2091 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 775023312 is about 27839.2405068816. The cubic root of 775023312 is about 918.5544848621.

Adding to 775023312 its reverse (213320577), we get a palindrome (988343889).

The spelling of 775023312 in words is "seven hundred seventy-five million, twenty-three thousand, three hundred twelve".