396890 has 32 divisors (see below), whose sum is σ = 798336. Its totient is φ = 141120.

The previous prime is 396887. The next prime is 396919. The reversal of 396890 is 98693.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 396890.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5555 + ... + 5625.

It is an arithmetic number, because the mean of its divisors is an integer number (24948).

2³⁹⁶⁸⁹⁰ is an apocalyptic number.

396890 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

396890 is a wasteful number, since it uses less digits than its factorization.

396890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 396890 is about 629.9920634421. The cubic root of 396890 is about 73.4891772980.

The spelling of 396890 in words is "three hundred ninety-six thousand, eight hundred ninety".