11236639 has 2 divisors, whose sum is σ = 11236640. Its totient is φ = 11236638.

The previous prime is 11236597. The next prime is 11236649. The reversal of 11236639 is 93663211.

It is a strong prime.

It is an emirp because it is prime and its reverse (93663211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11236639 - 2¹³ = 11228447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11236639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11236649) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5618319 + 5618320.

It is an arithmetic number, because the mean of its divisors is an integer number (5618320).

Almost surely, 2^11236639 is an apocalyptic number.

11236639 is a deficient number, since it is larger than the sum of its proper divisors (1).

11236639 is an equidigital number, since it uses as much as digits as its factorization.

11236639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 11236639 is about 3352.1096342453. The cubic root of 11236639 is about 223.9814969304.

The spelling of 11236639 in words is "eleven million, two hundred thirty-six thousand, six hundred thirty-nine".