11904857 has 2 divisors, whose sum is σ = 11904858. Its totient is φ = 11904856.

The previous prime is 11904833. The next prime is 11904859. The reversal of 11904857 is 75840911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11689561 + 215296 = 3419^2 + 464^2 .

It is a cyclic number.

It is not a de Polignac number, because 11904857 - 2⁸ = 11904601 is a prime.

Together with 11904859, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11904859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5952428 + 5952429.

It is an arithmetic number, because the mean of its divisors is an integer number (5952429).

Almost surely, 2^11904857 is an apocalyptic number.

It is an amenable number.

11904857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11904857 is an equidigital number, since it uses as much as digits as its factorization.

11904857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 11904857 is about 3450.3415772935. The cubic root of 11904857 is about 228.3361781780.

The spelling of 11904857 in words is "eleven million, nine hundred four thousand, eight hundred fifty-seven".