11637949 has 2 divisors, whose sum is σ = 11637950. Its totient is φ = 11637948.

The previous prime is 11637929. The next prime is 11637959. The reversal of 11637949 is 94973611.

11637949 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11256025 + 381924 = 3355^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 11637949 - 2⁵ = 11637917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11637919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5818974 + 5818975.

It is an arithmetic number, because the mean of its divisors is an integer number (5818975).

Almost surely, 2^11637949 is an apocalyptic number.

It is an amenable number.

11637949 is a deficient number, since it is larger than the sum of its proper divisors (1).

11637949 is an equidigital number, since it uses as much as digits as its factorization.

11637949 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 11637949 is about 3411.4438292313. The cubic root of 11637949 is about 226.6168246331.

The spelling of 11637949 in words is "eleven million, six hundred thirty-seven thousand, nine hundred forty-nine".