79606257 has 16 divisors (see below), whose sum is σ = 118301760. Its totient is φ = 47319552.

The previous prime is 79606253. The next prime is 79606259. The reversal of 79606257 is 75260697.

It is a happy number.

It is not a de Polignac number, because 79606257 - 2² = 79606253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79606253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40108 + ... + 42045.

It is an arithmetic number, because the mean of its divisors is an integer number (7393860).

Almost surely, 2^79606257 is an apocalyptic number.

It is an amenable number.

79606257 is a deficient number, since it is larger than the sum of its proper divisors (38695503).

79606257 is a wasteful number, since it uses less digits than its factorization.

79606257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82192.

The product of its (nonzero) digits is 158760, while the sum is 42.

The square root of 79606257 is about 8922.2338570562. The cubic root of 79606257 is about 430.1788637539.

The spelling of 79606257 in words is "seventy-nine million, six hundred six thousand, two hundred fifty-seven".