390372897 has 8 divisors (see below), whose sum is σ = 520783456. Its totient is φ = 260105472.

The previous prime is 390372889. The next prime is 390372923. The reversal of 390372897 is 798273093.

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

It is not a de Polignac number, because 390372897 - 2³ = 390372889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390372847) 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, 29248 + ... + 40449.

It is an arithmetic number, because the mean of its divisors is an integer number (65097932).

Almost surely, 2^390372897 is an apocalyptic number.

It is an amenable number.

390372897 is a deficient number, since it is larger than the sum of its proper divisors (130410559).

390372897 is a wasteful number, since it uses less digits than its factorization.

390372897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71567.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 390372897 is about 19757.8565892153. The cubic root of 390372897 is about 730.8471412662.

The spelling of 390372897 in words is "three hundred ninety million, three hundred seventy-two thousand, eight hundred ninety-seven".