39164021 has 8 divisors (see below), whose sum is σ = 42273504. Its totient is φ = 36068400.

The previous prime is 39164017. The next prime is 39164029. The reversal of 39164021 is 12046193.

39164021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 39164021 - 2² = 39164017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39164029) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2846 + ... + 9296.

It is an arithmetic number, because the mean of its divisors is an integer number (5284188).

Almost surely, 2^39164021 is an apocalyptic number.

It is an amenable number.

39164021 is a deficient number, since it is larger than the sum of its proper divisors (3109483).

39164021 is a wasteful number, since it uses less digits than its factorization.

39164021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6931.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 39164021 is about 6258.1164099112. The cubic root of 39164021 is about 339.5958895462.

The spelling of 39164021 in words is "thirty-nine million, one hundred sixty-four thousand, twenty-one".