11904631 has 2 divisors, whose sum is σ = 11904632. Its totient is φ = 11904630.

The previous prime is 11904611. The next prime is 11904661. The reversal of 11904631 is 13640911.

It is a weak prime.

It is an emirp because it is prime and its reverse (13640911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11904631 is a prime.

It is a super-2 number, since 2×11904631² = 283440478492322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11904596 and 11904605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11904601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5952315 + 5952316.

It is an arithmetic number, because the mean of its divisors is an integer number (5952316).

Almost surely, 2^11904631 is an apocalyptic number.

11904631 is a deficient number, since it is larger than the sum of its proper divisors (1).

11904631 is an equidigital number, since it uses as much as digits as its factorization.

11904631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 11904631 is about 3450.3088267574. The cubic root of 11904631 is about 228.3347332691.

The spelling of 11904631 in words is "eleven million, nine hundred four thousand, six hundred thirty-one".