890265564 has 36 divisors (see below), whose sum is σ = 2322989760. Its totient is φ = 287182080.

The previous prime is 890265511. The next prime is 890265569. The reversal of 890265564 is 465562098.

890265564 is a `hidden beast` number, since 8 + 90 + 2 + 6 + 556 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (890265569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 397749 + ... + 399980.

Almost surely, 2^890265564 is an apocalyptic number.

It is an amenable number.

890265564 is an abundant number, since it is smaller than the sum of its proper divisors (1432724196).

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

890265564 is a wasteful number, since it uses less digits than its factorization.

890265564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797770 (or 797765 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The square root of 890265564 is about 29837.3183111351. The cubic root of 890265564 is about 961.9958347741.

The spelling of 890265564 in words is "eight hundred ninety million, two hundred sixty-five thousand, five hundred sixty-four".