39390923 has 8 divisors (see below), whose sum is σ = 46277616. Its totient is φ = 33055200.

The previous prime is 39390913. The next prime is 39390931. The reversal of 39390923 is 32909393.

39390923 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 39390923 - 2⁴ = 39390907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (39390913) 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, 137588 + ... + 137873.

It is an arithmetic number, because the mean of its divisors is an integer number (5784702).

Almost surely, 2^39390923 is an apocalyptic number.

39390923 is a deficient number, since it is larger than the sum of its proper divisors (6886693).

39390923 is a wasteful number, since it uses less digits than its factorization.

39390923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275485.

The product of its (nonzero) digits is 39366, while the sum is 38.

The square root of 39390923 is about 6276.2188457701. The cubic root of 39390923 is about 340.2504584782.

The spelling of 39390923 in words is "thirty-nine million, three hundred ninety thousand, nine hundred twenty-three".