11964857 has 2 divisors, whose sum is σ = 11964858. Its totient is φ = 11964856.

The previous prime is 11964839. The next prime is 11964863. The reversal of 11964857 is 75846911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11723776 + 241081 = 3424^2 + 491^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11964857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11964817) 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 as a sum of consecutive naturals, namely, 5982428 + 5982429.

It is an arithmetic number, because the mean of its divisors is an integer number (5982429).

Almost surely, 2^11964857 is an apocalyptic number.

It is an amenable number.

11964857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11964857 is an equidigital number, since it uses as much as digits as its factorization.

11964857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 41.

The square root of 11964857 is about 3459.0254407853. The cubic root of 11964857 is about 228.7191372458.

It can be divided in two parts, 11964 and 857, that added together give a palindrome (12821).

The spelling of 11964857 in words is "eleven million, nine hundred sixty-four thousand, eight hundred fifty-seven".