47664388 has 12 divisors (see below), whose sum is σ = 87802960. Its totient is φ = 22577832.

The previous prime is 47664377. The next prime is 47664433. The reversal of 47664388 is 88346674.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313506 + ... + 313657.

Almost surely, 2^47664388 is an apocalyptic number.

It is an amenable number.

47664388 is a deficient number, since it is larger than the sum of its proper divisors (40138572).

47664388 is a wasteful number, since it uses less digits than its factorization.

47664388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 627186 (or 627184 counting only the distinct ones).

The product of its digits is 774144, while the sum is 46.

The square root of 47664388 is about 6903.9400345020. The cubic root of 47664388 is about 362.5751264032.

The spelling of 47664388 in words is "forty-seven million, six hundred sixty-four thousand, three hundred eighty-eight".