47438712 has 24 divisors (see below), whose sum is σ = 128480040. Its totient is φ = 15812880.

The previous prime is 47438707. The next prime is 47438737. The reversal of 47438712 is 21783474.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 329364 + ... + 329507.

It is an arithmetic number, because the mean of its divisors is an integer number (5353335).

Almost surely, 2^47438712 is an apocalyptic number.

It is an amenable number.

47438712 is an abundant number, since it is smaller than the sum of its proper divisors (81041328).

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

47438712 is a wasteful number, since it uses less digits than its factorization.

47438712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658883 (or 658876 counting only the distinct ones).

The product of its digits is 37632, while the sum is 36.

The square root of 47438712 is about 6887.5766420418. The cubic root of 47438712 is about 362.0019942301.

The spelling of 47438712 in words is "forty-seven million, four hundred thirty-eight thousand, seven hundred twelve".