79731327 has 16 divisors (see below), whose sum is σ = 115172960. Its totient is φ = 49061376.

The previous prime is 79731313. The next prime is 79731359. The reversal of 79731327 is 72313797.

It is not a de Polignac number, because 79731327 - 2⁷ = 79731199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79731307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543 + ... + 12639.

It is an arithmetic number, because the mean of its divisors is an integer number (7198310).

Almost surely, 2^79731327 is an apocalyptic number.

79731327 is a deficient number, since it is larger than the sum of its proper divisors (35441633).

79731327 is a wasteful number, since it uses less digits than its factorization.

79731327 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12139 (or 12113 counting only the distinct ones).

The product of its digits is 55566, while the sum is 39.

The square root of 79731327 is about 8929.2400012543. The cubic root of 79731327 is about 430.4040316431.

The spelling of 79731327 in words is "seventy-nine million, seven hundred thirty-one thousand, three hundred twenty-seven".