47904631 has 2 divisors, whose sum is σ = 47904632. Its totient is φ = 47904630.

The previous prime is 47904611. The next prime is 47904667. The reversal of 47904631 is 13640974.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47904631 - 2²³ = 39516023 is a prime.

It is a super-2 number, since 2×47904631² = 4589707342492322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47904611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23952315 + 23952316.

It is an arithmetic number, because the mean of its divisors is an integer number (23952316).

Almost surely, 2^47904631 is an apocalyptic number.

47904631 is a deficient number, since it is larger than the sum of its proper divisors (1).

47904631 is an equidigital number, since it uses as much as digits as its factorization.

47904631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 47904631 is about 6921.3171434345. The cubic root of 47904631 is about 363.1832687434.

The spelling of 47904631 in words is "forty-seven million, nine hundred four thousand, six hundred thirty-one".