47656568 has 8 divisors (see below), whose sum is σ = 89356080. Its totient is φ = 23828280.

The previous prime is 47656561. The next prime is 47656571. The reversal of 47656568 is 86565674.

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

It is a super-2 number, since 2×47656568² = 4542296947077248, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47656561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2978528 + ... + 2978543.

It is an arithmetic number, because the mean of its divisors is an integer number (11169510).

Almost surely, 2^47656568 is an apocalyptic number.

It is an amenable number.

47656568 is a deficient number, since it is larger than the sum of its proper divisors (41699512).

47656568 is a wasteful number, since it uses less digits than its factorization.

47656568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5957077 (or 5957073 counting only the distinct ones).

The product of its digits is 1209600, while the sum is 47.

The square root of 47656568 is about 6903.3736679974. The cubic root of 47656568 is about 362.5552968359. Note that the first 3 decimals are identical.

The spelling of 47656568 in words is "forty-seven million, six hundred fifty-six thousand, five hundred sixty-eight".