11904993 has 12 divisors (see below), whose sum is σ = 17789460. Its totient is φ = 7662816.

The previous prime is 11904989. The next prime is 11905013. The reversal of 11904993 is 39940911.

It can be written as a sum of positive squares in 2 ways, for example, as 2614689 + 9290304 = 1617^2 + 3048^2 .

It is not a de Polignac number, because 11904993 - 2² = 11904989 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11904983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22546 + ... + 23067.

It is an arithmetic number, because the mean of its divisors is an integer number (1482455).

Almost surely, 2^11904993 is an apocalyptic number.

It is an amenable number.

11904993 is a deficient number, since it is larger than the sum of its proper divisors (5884467).

11904993 is a wasteful number, since it uses less digits than its factorization.

11904993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45648 (or 45645 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 11904993 is about 3450.3612854308. The cubic root of 11904993 is about 228.3370476719.

The spelling of 11904993 in words is "eleven million, nine hundred four thousand, nine hundred ninety-three".