39247172 has 18 divisors (see below), whose sum is σ = 69411342. Its totient is φ = 19417504.

The previous prime is 39247139. The next prime is 39247181. The reversal of 39247172 is 27174293.

39247172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 38514436 + 732736 = 6206^2 + 856^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 45368 + ... + 46224.

Almost surely, 2^39247172 is an apocalyptic number.

It is an amenable number.

39247172 is a deficient number, since it is larger than the sum of its proper divisors (30164170).

39247172 is a wasteful number, since it uses less digits than its factorization.

39247172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075 (or 966 counting only the distinct ones).

The product of its digits is 21168, while the sum is 35.

The square root of 39247172 is about 6264.7563400343. The cubic root of 39247172 is about 339.8360570634.

The spelling of 39247172 in words is "thirty-nine million, two hundred forty-seven thousand, one hundred seventy-two".