890920 has 16 divisors (see below), whose sum is σ = 2004660. Its totient is φ = 356352.

The previous prime is 890893. The next prime is 890927. The reversal of 890920 is 29098.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 729316 + 161604 = 854^2 + 402^2 .

It is not an unprimeable number, because it can be changed into a prime (890927) 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, 11097 + ... + 11176.

2⁸⁹⁰⁹²⁰ is an apocalyptic number.

It is an amenable number.

890920 is an abundant number, since it is smaller than the sum of its proper divisors (1113740).

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

890920 is a wasteful number, since it uses less digits than its factorization.

890920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22284 (or 22280 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 890920 is about 943.8855862868. The cubic root of 890920 is about 96.2231498726.

The spelling of 890920 in words is "eight hundred ninety thousand, nine hundred twenty".