11975669 has 2 divisors, whose sum is σ = 11975670. Its totient is φ = 11975668.

The previous prime is 11975657. The next prime is 11975683. The reversal of 11975669 is 96657911.

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., 7091569 + 4884100 = 2663^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 11975669 - 2⁴ = 11975653 is a prime.

It is a super-2 number, since 2×11975669² = 286833295995122, 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 (11975609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5987834 + 5987835.

It is an arithmetic number, because the mean of its divisors is an integer number (5987835).

Almost surely, 2^11975669 is an apocalyptic number.

It is an amenable number.

11975669 is a deficient number, since it is larger than the sum of its proper divisors (1).

11975669 is an equidigital number, since it uses as much as digits as its factorization.

11975669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 44.

The square root of 11975669 is about 3460.5879558248. The cubic root of 11975669 is about 228.7880102463.

The spelling of 11975669 in words is "eleven million, nine hundred seventy-five thousand, six hundred sixty-nine".