772670856 has 64 divisors (see below), whose sum is σ = 1953515520. Its totient is φ = 254664000.

The previous prime is 772670851. The next prime is 772670869. The reversal of 772670856 is 658076277.

It is not an unprimeable number, because it can be changed into a prime (772670851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028481 + ... + 1029231.

It is an arithmetic number, because the mean of its divisors is an integer number (30523680).

Almost surely, 2^772670856 is an apocalyptic number.

It is an amenable number.

772670856 is an abundant number, since it is smaller than the sum of its proper divisors (1180844664).

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

772670856 is a wasteful number, since it uses less digits than its factorization.

772670856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1186 (or 1182 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 48.

The square root of 772670856 is about 27796.9576752565. The cubic root of 772670856 is about 917.6241691839.

The spelling of 772670856 in words is "seven hundred seventy-two million, six hundred seventy thousand, eight hundred fifty-six".