47931672 has 32 divisors (see below), whose sum is σ = 120556800. Its totient is φ = 15880224.

The previous prime is 47931647. The next prime is 47931679. The reversal of 47931672 is 27613974.

It is a self number, because there is not a number n which added to its sum of digits gives 47931672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47931679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1972 + ... + 9987.

It is an arithmetic number, because the mean of its divisors is an integer number (3767400).

Almost surely, 2^47931672 is an apocalyptic number.

It is an amenable number.

47931672 is an abundant number, since it is smaller than the sum of its proper divisors (72625128).

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

47931672 is a wasteful number, since it uses less digits than its factorization.

47931672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12135 (or 12131 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 47931672 is about 6923.2703255037. The cubic root of 47931672 is about 363.2515919324.

The spelling of 47931672 in words is "forty-seven million, nine hundred thirty-one thousand, six hundred seventy-two".