11667869 has 2 divisors, whose sum is σ = 11667870. Its totient is φ = 11667868.

The previous prime is 11667863. The next prime is 11667883. The reversal of 11667869 is 96876611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11142244 + 525625 = 3338^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 11667869 - 2⁸ = 11667613 is a prime.

It is a super-2 number, since 2×11667869² = 272278334002322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11667863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5833934 + 5833935.

It is an arithmetic number, because the mean of its divisors is an integer number (5833935).

Almost surely, 2^11667869 is an apocalyptic number.

It is an amenable number.

11667869 is a deficient number, since it is larger than the sum of its proper divisors (1).

11667869 is an equidigital number, since it uses as much as digits as its factorization.

11667869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 44.

The square root of 11667869 is about 3415.8262543636. The cubic root of 11667869 is about 226.8108614896.

The spelling of 11667869 in words is "eleven million, six hundred sixty-seven thousand, eight hundred sixty-nine".