636117413 has 2 divisors, whose sum is σ = 636117414. Its totient is φ = 636117412.

The previous prime is 636117389. The next prime is 636117421. The reversal of 636117413 is 314711636.

636117413 is digitally balanced in base 2, 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., 566344804 + 69772609 = 23798^2 + 8353^2 .

It is a cyclic number.

It is not a de Polignac number, because 636117413 - 2²⁸ = 367681957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 636117413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (636117913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318058706 + 318058707.

It is an arithmetic number, because the mean of its divisors is an integer number (318058707).

Almost surely, 2^636117413 is an apocalyptic number.

It is an amenable number.

636117413 is a deficient number, since it is larger than the sum of its proper divisors (1).

636117413 is an equidigital number, since it uses as much as digits as its factorization.

636117413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 636117413 is about 25221.3681825550. The cubic root of 636117413 is about 860.0276775841.

The spelling of 636117413 in words is "six hundred thirty-six million, one hundred seventeen thousand, four hundred thirteen".