390646713 has 4 divisors (see below), whose sum is σ = 520862288. Its totient is φ = 260431140.

The previous prime is 390646699. The next prime is 390646801. The reversal of 390646713 is 317646093.

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 390646713 - 2⁵ = 390646681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390646813) 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, 65107783 + ... + 65107788.

It is an arithmetic number, because the mean of its divisors is an integer number (130215572).

Almost surely, 2^390646713 is an apocalyptic number.

It is an amenable number.

390646713 is a deficient number, since it is larger than the sum of its proper divisors (130215575).

390646713 is a wasteful number, since it uses less digits than its factorization.

390646713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130215574.

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 390646713 is about 19764.7846686980. The cubic root of 390646713 is about 731.0179786643.

The spelling of 390646713 in words is "three hundred ninety million, six hundred forty-six thousand, seven hundred thirteen".