890506656 has 96 divisors (see below), whose sum is σ = 2797139520. Its totient is φ = 273998592.

The previous prime is 890506627. The next prime is 890506667. The reversal of 890506656 is 656605098.

890506656 is a `hidden beast` number, since 8 + 90 + 506 + 6 + 56 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28410 + ... + 50873.

It is an arithmetic number, because the mean of its divisors is an integer number (29136870).

Almost surely, 2^890506656 is an apocalyptic number.

It is an amenable number.

890506656 is an abundant number, since it is smaller than the sum of its proper divisors (1906632864).

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

890506656 is a wasteful number, since it uses less digits than its factorization.

890506656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79315 (or 79301 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 45.

The square root of 890506656 is about 29841.3581460362. The cubic root of 890506656 is about 962.0826660059.

The spelling of 890506656 in words is "eight hundred ninety million, five hundred six thousand, six hundred fifty-six".