79923415 has 16 divisors (see below), whose sum is σ = 112676256. Its totient is φ = 53654400.

The previous prime is 79923407. The next prime is 79923419. The reversal of 79923415 is 51432997.

It is not a de Polignac number, because 79923415 - 2³ = 79923407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79923419) 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 15 ways as a sum of consecutive naturals, for example, 55176 + ... + 56605.

It is an arithmetic number, because the mean of its divisors is an integer number (7042266).

Almost surely, 2^79923415 is an apocalyptic number.

79923415 is a deficient number, since it is larger than the sum of its proper divisors (32752841).

79923415 is a wasteful number, since it uses less digits than its factorization.

79923415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111810.

The product of its digits is 68040, while the sum is 40.

The square root of 79923415 is about 8939.9896532379. The cubic root of 79923415 is about 430.7493962896.

The spelling of 79923415 in words is "seventy-nine million, nine hundred twenty-three thousand, four hundred fifteen".