47679931 has 8 divisors (see below), whose sum is σ = 51967440. Its totient is φ = 43480992.

The previous prime is 47679901. The next prime is 47679937. The reversal of 47679931 is 13997674.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47679931 - 2⁵ = 47679899 is a prime.

It is a super-2 number, since 2×47679931² = 4546751640329522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47679937) 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, 21016 + ... + 23173.

It is an arithmetic number, because the mean of its divisors is an integer number (6495930).

Almost surely, 2^47679931 is an apocalyptic number.

47679931 is a deficient number, since it is larger than the sum of its proper divisors (4287509).

47679931 is a wasteful number, since it uses less digits than its factorization.

47679931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44285.

The product of its digits is 285768, while the sum is 46.

The square root of 47679931 is about 6905.0656043227. The cubic root of 47679931 is about 362.6145331313.

The spelling of 47679931 in words is "forty-seven million, six hundred seventy-nine thousand, nine hundred thirty-one".