890660 has 12 divisors (see below), whose sum is σ = 1870428. Its totient is φ = 356256.

The previous prime is 890657. The next prime is 890671. The reversal of 890660 is 66098.

890660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 417316 + 473344 = 646^2 + 688^2 .

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, 22247 + ... + 22286.

It is an arithmetic number, because the mean of its divisors is an integer number (155869).

2⁸⁹⁰⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

890660 is an abundant number, since it is smaller than the sum of its proper divisors (979768).

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

890660 is a wasteful number, since it uses less digits than its factorization.

890660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44542 (or 44540 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 890660 is about 943.7478476797. The cubic root of 890660 is about 96.2137885933.

The spelling of 890660 in words is "eight hundred ninety thousand, six hundred sixty".