47972715 has 24 divisors (see below), whose sum is σ = 89289360. Its totient is φ = 21930048.

The previous prime is 47972711. The next prime is 47972761. The reversal of 47972715 is 51727974.

It is not a de Polignac number, because 47972715 - 2² = 47972711 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47972711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31900 + ... + 33369.

It is an arithmetic number, because the mean of its divisors is an integer number (3720390).

Almost surely, 2^47972715 is an apocalyptic number.

47972715 is a deficient number, since it is larger than the sum of its proper divisors (41316645).

47972715 is a wasteful number, since it uses less digits than its factorization.

47972715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65291 (or 65284 counting only the distinct ones).

The product of its digits is 123480, while the sum is 42.

The square root of 47972715 is about 6926.2338251029. The cubic root of 47972715 is about 363.3552442154.

The spelling of 47972715 in words is "forty-seven million, nine hundred seventy-two thousand, seven hundred fifteen".