391596 has 12 divisors (see below), whose sum is σ = 913752. Its totient is φ = 130528.

The previous prime is 391579. The next prime is 391613. The reversal of 391596 is 695193.

391596 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (391579) and next prime (391613).

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16305 + ... + 16328.

It is an arithmetic number, because the mean of its divisors is an integer number (76146).

2³⁹¹⁵⁹⁶ is an apocalyptic number.

It is an amenable number.

391596 is an abundant number, since it is smaller than the sum of its proper divisors (522156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

391596 is a wasteful number, since it uses less digits than its factorization.

391596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32640 (or 32638 counting only the distinct ones).

The product of its digits is 7290, while the sum is 33.

The square root of 391596 is about 625.7763178645. The cubic root of 391596 is about 73.1609633898.

The spelling of 391596 in words is "three hundred ninety-one thousand, five hundred ninety-six".