47621972 has 12 divisors (see below), whose sum is σ = 84512736. Its totient is φ = 23475480.

The previous prime is 47621969. The next prime is 47621989. The reversal of 47621972 is 27912674.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83558 + ... + 84125.

It is an arithmetic number, because the mean of its divisors is an integer number (7042728).

Almost surely, 2^47621972 is an apocalyptic number.

It is an amenable number.

47621972 is a deficient number, since it is larger than the sum of its proper divisors (36890764).

47621972 is a wasteful number, since it uses less digits than its factorization.

47621972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167758 (or 167756 counting only the distinct ones).

The product of its digits is 42336, while the sum is 38.

The square root of 47621972 is about 6900.8674817011. The cubic root of 47621972 is about 362.4675439828.

The spelling of 47621972 in words is "forty-seven million, six hundred twenty-one thousand, nine hundred seventy-two".