890538992 has 40 divisors (see below), whose sum is σ = 1977287136. Its totient is φ = 380618496.

The previous prime is 890538947. The next prime is 890538997. The reversal of 890538992 is 299835098.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890538997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31118 + ... + 52434.

Almost surely, 2^890538992 is an apocalyptic number.

It is an amenable number.

890538992 is an abundant number, since it is smaller than the sum of its proper divisors (1086748144).

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

890538992 is a wasteful number, since it uses less digits than its factorization.

890538992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21705 (or 21699 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The square root of 890538992 is about 29841.8999395146. The cubic root of 890538992 is about 962.0943108856.

The spelling of 890538992 in words is "eight hundred ninety million, five hundred thirty-eight thousand, nine hundred ninety-two".