47638812 has 24 divisors (see below), whose sum is σ = 119708176. Its totient is φ = 14658048.

The previous prime is 47638807. The next prime is 47638823. The reversal of 47638812 is 21883674.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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, 152533 + ... + 152844.

Almost surely, 2^47638812 is an apocalyptic number.

It is an amenable number.

47638812 is an abundant number, since it is smaller than the sum of its proper divisors (72069364).

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

47638812 is a wasteful number, since it uses less digits than its factorization.

47638812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305397 (or 305395 counting only the distinct ones).

The product of its digits is 64512, while the sum is 39.

The square root of 47638812 is about 6902.0875103116. The cubic root of 47638812 is about 362.5102639979.

The spelling of 47638812 in words is "forty-seven million, six hundred thirty-eight thousand, eight hundred twelve".