79015887 has 12 divisors (see below), whose sum is σ = 114332400. Its totient is φ = 52585728.

The previous prime is 79015877. The next prime is 79015901. The reversal of 79015887 is 78851097.

It is not a de Polignac number, because 79015887 - 2⁷ = 79015759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79015817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1938 + ... + 12719.

It is an arithmetic number, because the mean of its divisors is an integer number (9527700).

Almost surely, 2^79015887 is an apocalyptic number.

79015887 is a deficient number, since it is larger than the sum of its proper divisors (35316513).

79015887 is a wasteful number, since it uses less digits than its factorization.

79015887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15262 (or 15259 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 79015887 is about 8889.0880859625. The cubic root of 79015887 is about 429.1128038894.

The spelling of 79015887 in words is "seventy-nine million, fifteen thousand, eight hundred eighty-seven".