11685941 has 2 divisors, whose sum is σ = 11685942. Its totient is φ = 11685940.

The previous prime is 11685937. The next prime is 11685983. The reversal of 11685941 is 14958611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 23716 = 3415^2 + 154^2 .

It is an emirp because it is prime and its reverse (14958611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11685941 - 2² = 11685937 is a prime.

It is a super-2 number, since 2×11685941² = 273122434110962, 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 (11685911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5842970 + 5842971.

It is an arithmetic number, because the mean of its divisors is an integer number (5842971).

Almost surely, 2^11685941 is an apocalyptic number.

It is an amenable number.

11685941 is a deficient number, since it is larger than the sum of its proper divisors (1).

11685941 is an equidigital number, since it uses as much as digits as its factorization.

11685941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 35.

The square root of 11685941 is about 3418.4705644484. The cubic root of 11685941 is about 226.9279011843.

The spelling of 11685941 in words is "eleven million, six hundred eighty-five thousand, nine hundred forty-one".