39791943 has 12 divisors (see below), whose sum is σ = 58170840. Its totient is φ = 26207856.

The previous prime is 39791839. The next prime is 39791957. The reversal of 39791943 is 34919793.

It is not a de Polignac number, because 39791943 - 2²⁴ = 23014727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39791963) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25888 + ... + 27381.

It is an arithmetic number, because the mean of its divisors is an integer number (4847570).

Almost surely, 2^39791943 is an apocalyptic number.

39791943 is a deficient number, since it is larger than the sum of its proper divisors (18378897).

39791943 is a wasteful number, since it uses less digits than its factorization.

39791943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53358 (or 53355 counting only the distinct ones).

The product of its digits is 183708, while the sum is 45.

The square root of 39791943 is about 6308.0855257360. The cubic root of 39791943 is about 341.4012041762.

The spelling of 39791943 in words is "thirty-nine million, seven hundred ninety-one thousand, nine hundred forty-three".