775313328 has 30 divisors (see below), whose sum is σ = 2003391244. Its totient is φ = 258373472.

The previous prime is 775313299. The next prime is 775313369. The reversal of 775313328 is 823313577.

It is a happy number.

It is a super-2 number, since 2×775313328² = 1202221513148871168, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190903 + ... + 194921.

Almost surely, 2^775313328 is an apocalyptic number.

It is an amenable number.

775313328 is an abundant number, since it is smaller than the sum of its proper divisors (1228077916).

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

775313328 is an frugal number, since it uses more digits than its factorization.

775313328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8049 (or 4024 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 775313328 is about 27844.4487824773. The cubic root of 775313328 is about 918.6690458357.

The spelling of 775313328 in words is "seven hundred seventy-five million, three hundred thirteen thousand, three hundred twenty-eight".