47138664 has 32 divisors (see below), whose sum is σ = 120589920. Its totient is φ = 15347136.

The previous prime is 47138627. The next prime is 47138681. The reversal of 47138664 is 46683174.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21807 + ... + 23870.

It is an arithmetic number, because the mean of its divisors is an integer number (3768435).

Almost surely, 2^47138664 is an apocalyptic number.

It is an amenable number.

47138664 is an abundant number, since it is smaller than the sum of its proper divisors (73451256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47138664 is a wasteful number, since it uses less digits than its factorization.

47138664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45729 (or 45725 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 47138664 is about 6865.7602638018. The cubic root of 47138664 is about 361.2371632911.

The spelling of 47138664 in words is "forty-seven million, one hundred thirty-eight thousand, six hundred sixty-four".