893977656 has 64 divisors (see below), whose sum is σ = 2625678720. Its totient is φ = 250062720.

The previous prime is 893977649. The next prime is 893977661. The reversal of 893977656 is 656779398.

It is a self number, because there is not a number n which added to its sum of digits gives 893977656.

It is a congruent number.

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, 126810 + ... + 133673.

It is an arithmetic number, because the mean of its divisors is an integer number (41026230).

Almost surely, 2^893977656 is an apocalyptic number.

It is an amenable number.

893977656 is an abundant number, since it is smaller than the sum of its proper divisors (1731701064).

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

893977656 is a wasteful number, since it uses less digits than its factorization.

893977656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260516 (or 260512 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 60.

The square root of 893977656 is about 29899.4591255427. The cubic root of 893977656 is about 963.3310413162.

The spelling of 893977656 in words is "eight hundred ninety-three million, nine hundred seventy-seven thousand, six hundred fifty-six".