11867657 has 2 divisors, whose sum is σ = 11867658. Its totient is φ = 11867656.

The previous prime is 11867651. The next prime is 11867677. The reversal of 11867657 is 75676811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8667136 + 3200521 = 2944^2 + 1789^2 .

It is a cyclic number.

It is not a de Polignac number, because 11867657 - 2¹⁰ = 11866633 is a prime.

It is a Chen prime.

It is equal to p₇₇₉₉₁₈ and since 11867657 and 779918 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11867651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5933828 + 5933829.

It is an arithmetic number, because the mean of its divisors is an integer number (5933829).

Almost surely, 2^11867657 is an apocalyptic number.

It is an amenable number.

11867657 is a deficient number, since it is larger than the sum of its proper divisors (1).

11867657 is an equidigital number, since it uses as much as digits as its factorization.

11867657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 41.

The square root of 11867657 is about 3444.9465888458. The cubic root of 11867657 is about 228.0980969588.

The spelling of 11867657 in words is "eleven million, eight hundred sixty-seven thousand, six hundred fifty-seven".