79888731 has 8 divisors (see below), whose sum is σ = 114712080. Its totient is φ = 49162272.

The previous prime is 79888727. The next prime is 79888751. The reversal of 79888731 is 13788897.

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

It is not a de Polignac number, because 79888731 - 2² = 79888727 is a prime.

It is a super-2 number, since 2×79888731² = 12764418681580722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (79888751) 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 7 ways as a sum of consecutive naturals, for example, 1024176 + ... + 1024253.

It is an arithmetic number, because the mean of its divisors is an integer number (14339010).

Almost surely, 2^79888731 is an apocalyptic number.

79888731 is a deficient number, since it is larger than the sum of its proper divisors (34823349).

79888731 is a wasteful number, since it uses less digits than its factorization.

79888731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048445.

The product of its digits is 677376, while the sum is 51.

The square root of 79888731 is about 8938.0496194640. The cubic root of 79888731 is about 430.6870771568.

The spelling of 79888731 in words is "seventy-nine million, eight hundred eighty-eight thousand, seven hundred thirty-one".