79515713 has 4 divisors (see below), whose sum is σ = 82080768. Its totient is φ = 76950660.

The previous prime is 79515707. The next prime is 79515719. The reversal of 79515713 is 31751597.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (79515707) and next prime (79515719).

It is a cyclic number.

It is not a de Polignac number, because 79515713 - 2¹⁶ = 79450177 is a prime.

It is a super-2 number, since 2×79515713² = 12645497227796738, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79515719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1282481 + ... + 1282542.

It is an arithmetic number, because the mean of its divisors is an integer number (20520192).

Almost surely, 2^79515713 is an apocalyptic number.

It is an amenable number.

79515713 is a deficient number, since it is larger than the sum of its proper divisors (2565055).

79515713 is a wasteful number, since it uses less digits than its factorization.

79515713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2565054.

The product of its digits is 33075, while the sum is 38.

The square root of 79515713 is about 8917.1583478146. The cubic root of 79515713 is about 430.0157070159.

The spelling of 79515713 in words is "seventy-nine million, five hundred fifteen thousand, seven hundred thirteen".