79931093 has 8 divisors (see below), whose sum is σ = 92327040. Its totient is φ = 68390080.

The previous prime is 79931069. The next prime is 79931107. The reversal of 79931093 is 39013997.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79931093 - 2¹⁸ = 79668949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 79931093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79951093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213533 + ... + 213906.

It is an arithmetic number, because the mean of its divisors is an integer number (11540880).

Almost surely, 2^79931093 is an apocalyptic number.

It is an amenable number.

79931093 is a deficient number, since it is larger than the sum of its proper divisors (12395947).

79931093 is a wasteful number, since it uses less digits than its factorization.

79931093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427467.

The product of its (nonzero) digits is 45927, while the sum is 41.

The square root of 79931093 is about 8940.4190617666. The cubic root of 79931093 is about 430.7631894438.

The spelling of 79931093 in words is "seventy-nine million, nine hundred thirty-one thousand, ninety-three".