79697256 has 32 divisors (see below), whose sum is σ = 200772000. Its totient is φ = 26361920.

The previous prime is 79697209. The next prime is 79697263. The reversal of 79697256 is 65279697.

It is a super-2 number, since 2×79697256² = 12703305227859072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79697199 and 79697208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9531 + ... + 15818.

It is an arithmetic number, because the mean of its divisors is an integer number (6274125).

Almost surely, 2^79697256 is an apocalyptic number.

It is an amenable number.

79697256 is an abundant number, since it is smaller than the sum of its proper divisors (121074744).

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

79697256 is a wasteful number, since it uses less digits than its factorization.

79697256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25489 (or 25485 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 51.

The square root of 79697256 is about 8927.3319642545. The cubic root of 79697256 is about 430.3427157814.

It can be divided in two parts, 7969 and 7256, that added together give a triangular number (15225 = T₁₇₄).

The spelling of 79697256 in words is "seventy-nine million, six hundred ninety-seven thousand, two hundred fifty-six".