39164457 has 4 divisors (see below), whose sum is σ = 52219280. Its totient is φ = 26109636.

The previous prime is 39164449. The next prime is 39164473. The reversal of 39164457 is 75446193.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39164457 - 2³ = 39164449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39164407) 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, 6527407 + ... + 6527412.

It is an arithmetic number, because the mean of its divisors is an integer number (13054820).

Almost surely, 2^39164457 is an apocalyptic number.

It is an amenable number.

39164457 is a deficient number, since it is larger than the sum of its proper divisors (13054823).

39164457 is a wasteful number, since it uses less digits than its factorization.

39164457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13054822.

The product of its digits is 90720, while the sum is 39.

The square root of 39164457 is about 6258.1512445769. The cubic root of 39164457 is about 339.5971497442.

It can be divided in two parts, 39164 and 457, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 39164457 in words is "thirty-nine million, one hundred sixty-four thousand, four hundred fifty-seven".