39047139 has 24 divisors (see below), whose sum is σ = 58160960. Its totient is φ = 25229232.

The previous prime is 39047119. The next prime is 39047149. The reversal of 39047139 is 93174093.

It is not a de Polignac number, because 39047139 - 2¹⁶ = 38981603 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39047119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62772 + ... + 63390.

Almost surely, 2^39047139 is an apocalyptic number.

39047139 is a deficient number, since it is larger than the sum of its proper divisors (19113821).

39047139 is a wasteful number, since it uses less digits than its factorization.

39047139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831 (or 828 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 39047139 is about 6248.7709991646. The cubic root of 39047139 is about 339.2577203296.

The spelling of 39047139 in words is "thirty-nine million, forty-seven thousand, one hundred thirty-nine".