390597 has 4 divisors (see below), whose sum is σ = 520800. Its totient is φ = 260396.

The previous prime is 390581. The next prime is 390647. The reversal of 390597 is 795093.

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 390597 - 2⁴ = 390581 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390527) 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, 65097 + ... + 65102.

It is an arithmetic number, because the mean of its divisors is an integer number (130200).

2³⁹⁰⁵⁹⁷ is an apocalyptic number.

It is an amenable number.

390597 is a deficient number, since it is larger than the sum of its proper divisors (130203).

390597 is a wasteful number, since it uses less digits than its factorization.

390597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130202.

The product of its (nonzero) digits is 8505, while the sum is 33.

The square root of 390597 is about 624.9775995986. The cubic root of 390597 is about 73.0986968003.

Subtracting 390597 from its reverse (795093), we obtain a square (404496 = 636²).

The spelling of 390597 in words is "three hundred ninety thousand, five hundred ninety-seven".