390339317 has 4 divisors (see below), whose sum is σ = 393987456. Its totient is φ = 386691180.

The previous prime is 390339247. The next prime is 390339373. The reversal of 390339317 is 713933093.

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, and also an emirpimes, since its reverse is a distinct semiprime: 713933093 = 37 ⋅19295489.

It is a cyclic number.

It is not a de Polignac number, because 390339317 - 2²² = 386145013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390039317) 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, 1823909 + ... + 1824122.

It is an arithmetic number, because the mean of its divisors is an integer number (98496864).

Almost surely, 2^390339317 is an apocalyptic number.

It is an amenable number.

390339317 is a deficient number, since it is larger than the sum of its proper divisors (3648139).

390339317 is a wasteful number, since it uses less digits than its factorization.

390339317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3648138.

The product of its (nonzero) digits is 45927, while the sum is 38.

The square root of 390339317 is about 19757.0067824051. The cubic root of 390339317 is about 730.8261847646.

The spelling of 390339317 in words is "three hundred ninety million, three hundred thirty-nine thousand, three hundred seventeen".