11904961 has 16 divisors (see below), whose sum is σ = 13086720. Its totient is φ = 10794960.

The previous prime is 11904941. The next prime is 11904979. The reversal of 11904961 is 16940911.

It is a cyclic number.

It is not a de Polignac number, because 11904961 - 2⁷ = 11904833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11904901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41926 + ... + 42208.

It is an arithmetic number, because the mean of its divisors is an integer number (817920).

Almost surely, 2^11904961 is an apocalyptic number.

It is an amenable number.

11904961 is a deficient number, since it is larger than the sum of its proper divisors (1181759).

11904961 is a wasteful number, since it uses less digits than its factorization.

11904961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 11904961 is about 3450.3566482322. The cubic root of 11904961 is about 228.3368430857.

The spelling of 11904961 in words is "eleven million, nine hundred four thousand, nine hundred sixty-one".