11996857 has 2 divisors, whose sum is σ = 11996858. Its totient is φ = 11996856.

The previous prime is 11996851. The next prime is 11996909. The reversal of 11996857 is 75869911.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 1212201 = 3284^2 + 1101^2 .

It is a cyclic number.

It is not a de Polignac number, because 11996857 - 2⁷ = 11996729 is a prime.

It is not a weakly prime, because it can be changed into another prime (11996851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5998428 + 5998429.

It is an arithmetic number, because the mean of its divisors is an integer number (5998429).

Almost surely, 2^11996857 is an apocalyptic number.

It is an amenable number.

11996857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11996857 is an equidigital number, since it uses as much as digits as its factorization.

11996857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 46.

The square root of 11996857 is about 3463.6479324550. The cubic root of 11996857 is about 228.9228587828.

The spelling of 11996857 in words is "eleven million, nine hundred ninety-six thousand, eight hundred fifty-seven".