39791172 has 24 divisors (see below), whose sum is σ = 93768192. Its totient is φ = 13132000.

The previous prime is 39791159. The next prime is 39791189. The reversal of 39791172 is 27119793.

It is a self number, because there is not a number n which added to its sum of digits gives 39791172.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15204 + ... + 17627.

It is an arithmetic number, because the mean of its divisors is an integer number (3907008).

Almost surely, 2^39791172 is an apocalyptic number.

It is an amenable number.

39791172 is an abundant number, since it is smaller than the sum of its proper divisors (53977020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39791172 is a wasteful number, since it uses less digits than its factorization.

39791172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32939 (or 32937 counting only the distinct ones).

The product of its digits is 23814, while the sum is 39.

The square root of 39791172 is about 6308.0244133960. The cubic root of 39791172 is about 341.3989991902.

It can be divided in two parts, 3979 and 1172, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 39791172 in words is "thirty-nine million, seven hundred ninety-one thousand, one hundred seventy-two".