11985937 has 2 divisors, whose sum is σ = 11985938. Its totient is φ = 11985936.

The previous prime is 11985923. The next prime is 11985971. The reversal of 11985937 is 73958911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8856576 + 3129361 = 2976^2 + 1769^2 .

It is a cyclic number.

It is not a de Polignac number, because 11985937 - 2¹⁹ = 11461649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11985893 and 11985902.

It is not a weakly prime, because it can be changed into another prime (11985907) 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, 5992968 + 5992969.

It is an arithmetic number, because the mean of its divisors is an integer number (5992969).

Almost surely, 2^11985937 is an apocalyptic number.

It is an amenable number.

11985937 is a deficient number, since it is larger than the sum of its proper divisors (1).

11985937 is an equidigital number, since it uses as much as digits as its factorization.

11985937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 43.

The square root of 11985937 is about 3462.0712008854. The cubic root of 11985937 is about 228.8533795716.

It can be divided in two parts, 119 and 85937, that multiplied together give a triangular number (10226503 = T₄₅₂₂).

The spelling of 11985937 in words is "eleven million, nine hundred eighty-five thousand, nine hundred thirty-seven".