47638972 has 12 divisors (see below), whose sum is σ = 83416536. Its totient is φ = 23805680.

The previous prime is 47638961. The next prime is 47638979. The reversal of 47638972 is 27983674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47638979) 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, 11718 + ... + 15250.

It is an arithmetic number, because the mean of its divisors is an integer number (6951378).

Almost surely, 2^47638972 is an apocalyptic number.

It is an amenable number.

47638972 is a deficient number, since it is larger than the sum of its proper divisors (35777564).

47638972 is a wasteful number, since it uses less digits than its factorization.

47638972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908 (or 6906 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 47638972 is about 6902.0991009982. The cubic root of 47638972 is about 362.5106698405.

The spelling of 47638972 in words is "forty-seven million, six hundred thirty-eight thousand, nine hundred seventy-two".