47974731 has 32 divisors (see below), whose sum is σ = 78709248. Its totient is φ = 25367040.

The previous prime is 47974727. The next prime is 47974739. The reversal of 47974731 is 13747974.

It is not a de Polignac number, because 47974731 - 2² = 47974727 is a prime.

It is a super-2 number, since 2×47974731² = 4603149629044722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47974739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20676 + ... + 22878.

It is an arithmetic number, because the mean of its divisors is an integer number (2459664).

Almost surely, 2^47974731 is an apocalyptic number.

47974731 is a deficient number, since it is larger than the sum of its proper divisors (30734517).

47974731 is a wasteful number, since it uses less digits than its factorization.

47974731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291.

The product of its digits is 148176, while the sum is 42.

The square root of 47974731 is about 6926.3793572111. The cubic root of 47974731 is about 363.3603340108.

The spelling of 47974731 in words is "forty-seven million, nine hundred seventy-four thousand, seven hundred thirty-one".