47472931 has 8 divisors (see below), whose sum is σ = 51853824. Its totient is φ = 43102920.

The previous prime is 47472911. The next prime is 47472937. The reversal of 47472931 is 13927474.

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 47472931 - 2⁵ = 47472899 is a prime.

It is a super-2 number, since 2×47472931² = 4507358355461522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47472937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8406 + ... + 12868.

It is an arithmetic number, because the mean of its divisors is an integer number (6481728).

Almost surely, 2^47472931 is an apocalyptic number.

47472931 is a deficient number, since it is larger than the sum of its proper divisors (4380893).

47472931 is a wasteful number, since it uses less digits than its factorization.

47472931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441.

The product of its digits is 42336, while the sum is 37.

The square root of 47472931 is about 6890.0603045256. The cubic root of 47472931 is about 362.0890143624.

The spelling of 47472931 in words is "forty-seven million, four hundred seventy-two thousand, nine hundred thirty-one".