390350913 has 4 divisors (see below), whose sum is σ = 520467888. Its totient is φ = 260233940.

The previous prime is 390350887. The next prime is 390350927. The reversal of 390350913 is 319053093.

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 a cyclic number.

It is not a de Polignac number, because 390350913 - 2⁸ = 390350657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (390350113) 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, 65058483 + ... + 65058488.

It is an arithmetic number, because the mean of its divisors is an integer number (130116972).

Almost surely, 2^390350913 is an apocalyptic number.

It is an amenable number.

390350913 is a deficient number, since it is larger than the sum of its proper divisors (130116975).

390350913 is a wasteful number, since it uses less digits than its factorization.

390350913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130116974.

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 390350913 is about 19757.3002457320. The cubic root of 390350913 is about 730.8334216959.

The spelling of 390350913 in words is "three hundred ninety million, three hundred fifty thousand, nine hundred thirteen".