79364987 has 4 divisors (see below), whose sum is σ = 85470000. Its totient is φ = 73259976.

The previous prime is 79364983. The next prime is 79365017. The reversal of 79364987 is 78946397.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 79364987 - 2² = 79364983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79364983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3052487 + ... + 3052512.

It is an arithmetic number, because the mean of its divisors is an integer number (21367500).

Almost surely, 2^79364987 is an apocalyptic number.

79364987 is a deficient number, since it is larger than the sum of its proper divisors (6105013).

79364987 is a wasteful number, since it uses less digits than its factorization.

79364987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105012.

The product of its digits is 2286144, while the sum is 53.

The square root of 79364987 is about 8908.7028797687. The cubic root of 79364987 is about 429.7438297510.

The spelling of 79364987 in words is "seventy-nine million, three hundred sixty-four thousand, nine hundred eighty-seven".