79620057 has 24 divisors (see below), whose sum is σ = 129659040. Its totient is φ = 48252600.

The previous prime is 79620029. The next prime is 79620077. The reversal of 79620057 is 75002697.

It is not a de Polignac number, because 79620057 - 2⁸ = 79619801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79620007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8919 + ... + 15452.

It is an arithmetic number, because the mean of its divisors is an integer number (5402460).

Almost surely, 2^79620057 is an apocalyptic number.

It is an amenable number.

79620057 is a deficient number, since it is larger than the sum of its proper divisors (50038983).

79620057 is a wasteful number, since it uses less digits than its factorization.

79620057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24402 (or 24385 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 79620057 is about 8923.0071724727. The cubic root of 79620057 is about 430.2037199463.

The spelling of 79620057 in words is "seventy-nine million, six hundred twenty thousand, fifty-seven".