79315918 has 32 divisors (see below), whose sum is σ = 141050880. Its totient is φ = 33048000.

The previous prime is 79315913. The next prime is 79315919. The reversal of 79315918 is 81951397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79315913) 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, 9898 + ... + 16018.

It is an arithmetic number, because the mean of its divisors is an integer number (4407840).

Almost surely, 2^79315918 is an apocalyptic number.

79315918 is a deficient number, since it is larger than the sum of its proper divisors (61734962).

79315918 is a wasteful number, since it uses less digits than its factorization.

79315918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6184.

The product of its digits is 68040, while the sum is 43.

The square root of 79315918 is about 8905.9484615621. The cubic root of 79315918 is about 429.6552455692.

The spelling of 79315918 in words is "seventy-nine million, three hundred fifteen thousand, nine hundred eighteen".