39348931 has 4 divisors (see below), whose sum is σ = 41663592. Its totient is φ = 37034272.

The previous prime is 39348919. The next prime is 39348941. The reversal of 39348931 is 13984393.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13984393 = 97 ⋅144169.

It is a cyclic number.

It is not a de Polignac number, because 39348931 - 2¹⁷ = 39217859 is a prime.

It is a super-2 number, since 2×39348931² = 3096676741685522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39348941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1157305 + ... + 1157338.

It is an arithmetic number, because the mean of its divisors is an integer number (10415898).

Almost surely, 2^39348931 is an apocalyptic number.

39348931 is a deficient number, since it is larger than the sum of its proper divisors (2314661).

39348931 is a wasteful number, since it uses less digits than its factorization.

39348931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2314660.

The product of its digits is 69984, while the sum is 40.

The square root of 39348931 is about 6272.8726274331. The cubic root of 39348931 is about 340.1295094858.

The spelling of 39348931 in words is "thirty-nine million, three hundred forty-eight thousand, nine hundred thirty-one".