11994637 has 2 divisors, whose sum is σ = 11994638. Its totient is φ = 11994636.

The previous prime is 11994601. The next prime is 11994677. The reversal of 11994637 is 73649911.

It is an a-pointer prime, because the next prime (11994677) can be obtained adding 11994637 to its sum of digits (40).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10569001 + 1425636 = 3251^2 + 1194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11994637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11994637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11994677) 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, 5997318 + 5997319.

It is an arithmetic number, because the mean of its divisors is an integer number (5997319).

Almost surely, 2^11994637 is an apocalyptic number.

It is an amenable number.

11994637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11994637 is an equidigital number, since it uses as much as digits as its factorization.

11994637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 40.

The square root of 11994637 is about 3463.3274462574. The cubic root of 11994637 is about 228.9087373036.

The spelling of 11994637 in words is "eleven million, nine hundred ninety-four thousand, six hundred thirty-seven".