47556664 has 16 divisors (see below), whose sum is σ = 89664120. Its totient is φ = 23646240.

The previous prime is 47556661. The next prime is 47556671. The reversal of 47556664 is 46665574.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 47556664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47556661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14974 + ... + 17869.

Almost surely, 2^47556664 is an apocalyptic number.

It is an amenable number.

47556664 is a deficient number, since it is larger than the sum of its proper divisors (42107456).

47556664 is a wasteful number, since it uses less digits than its factorization.

47556664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33030 (or 33026 counting only the distinct ones).

The product of its digits is 604800, while the sum is 43.

The square root of 47556664 is about 6896.1339894175. The cubic root of 47556664 is about 362.3017741447.

The spelling of 47556664 in words is "forty-seven million, five hundred fifty-six thousand, six hundred sixty-four".