390659 has 8 divisors (see below), whose sum is σ = 426000. Its totient is φ = 356832.

The previous prime is 390653. The next prime is 390671. The reversal of 390659 is 956093.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390659 is a prime.

It is a super-2 number, since 2×390659² = 305228908562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (53250).

2³⁹⁰⁶⁵⁹ is an apocalyptic number.

390659 is a deficient number, since it is larger than the sum of its proper divisors (35341).

390659 is a wasteful number, since it uses less digits than its factorization.

390659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757.

The product of its (nonzero) digits is 7290, while the sum is 32.

The square root of 390659 is about 625.0271994082. The cubic root of 390659 is about 73.1025642813.

The spelling of 390659 in words is "three hundred ninety thousand, six hundred fifty-nine".