900917656 has 8 divisors (see below), whose sum is σ = 1689220620. Its totient is φ = 450458824.

The previous prime is 900917599. The next prime is 900917657. The reversal of 900917656 is 656719009.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (900917657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56307346 + ... + 56307361.

Almost surely, 2^900917656 is an apocalyptic number.

It is an amenable number.

900917656 is a deficient number, since it is larger than the sum of its proper divisors (788302964).

900917656 is a wasteful number, since it uses less digits than its factorization.

900917656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112614713 (or 112614709 counting only the distinct ones).

The product of its (nonzero) digits is 102060, while the sum is 43.

The square root of 900917656 is about 30015.2903700764. The cubic root of 900917656 is about 965.8174165221.

The spelling of 900917656 in words is "nine hundred million, nine hundred seventeen thousand, six hundred fifty-six".