772396928 has 32 divisors (see below), whose sum is σ = 1549125000. Its totient is φ = 383597056.

The previous prime is 772396903. The next prime is 772396943. The reversal of 772396928 is 829693277.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 772396928.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178 + ... + 39321.

Almost surely, 2^772396928 is an apocalyptic number.

It is an amenable number.

772396928 is an abundant number, since it is smaller than the sum of its proper divisors (776728072).

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

772396928 is a wasteful number, since it uses less digits than its factorization.

772396928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40662 (or 40650 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 53.

The square root of 772396928 is about 27792.0299366563. The cubic root of 772396928 is about 917.5157173716.

The spelling of 772396928 in words is "seven hundred seventy-two million, three hundred ninety-six thousand, nine hundred twenty-eight".