79922997 has 64 divisors (see below), whose sum is σ = 151756800. Its totient is φ = 40357440.

The previous prime is 79922989. The next prime is 79923007.

79922997 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 79922997 - 2³ = 79922989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79922897) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 76404 + ... + 77442.

It is an arithmetic number, because the mean of its divisors is an integer number (2371200).

Almost surely, 2^79922997 is an apocalyptic number.

79922997 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

79922997 is a deficient number, since it is larger than the sum of its proper divisors (71833803).

79922997 is a wasteful number, since it uses less digits than its factorization.

79922997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103 (or 1097 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 79922997 is about 8939.9662751042. The cubic root of 79922997 is about 430.7486453476.

The spelling of 79922997 in words is "seventy-nine million, nine hundred twenty-two thousand, nine hundred ninety-seven".