11678957 has 2 divisors, whose sum is σ = 11678958. Its totient is φ = 11678956.

The previous prime is 11678951. The next prime is 11678959. The reversal of 11678957 is 75987611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5851561 + 5827396 = 2419^2 + 2414^2 .

It is a cyclic number.

It is not a de Polignac number, because 11678957 - 2⁴ = 11678941 is a prime.

Together with 11678959, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11678951) 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, 5839478 + 5839479.

It is an arithmetic number, because the mean of its divisors is an integer number (5839479).

Almost surely, 2^11678957 is an apocalyptic number.

It is an amenable number.

11678957 is a deficient number, since it is larger than the sum of its proper divisors (1).

11678957 is an equidigital number, since it uses as much as digits as its factorization.

11678957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 44.

The square root of 11678957 is about 3417.4489023247. The cubic root of 11678957 is about 226.8826850197.

The spelling of 11678957 in words is "eleven million, six hundred seventy-eight thousand, nine hundred fifty-seven".