636034361 has 2 divisors, whose sum is σ = 636034362. Its totient is φ = 636034360.

The previous prime is 636034349. The next prime is 636034411. The reversal of 636034361 is 163430636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 624000400 + 12033961 = 24980^2 + 3469^2 .

It is a cyclic number.

It is not a de Polignac number, because 636034361 - 2¹⁸ = 635772217 is a prime.

It is not a weakly prime, because it can be changed into another prime (636030361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 318017180 + 318017181.

It is an arithmetic number, because the mean of its divisors is an integer number (318017181).

Almost surely, 2^636034361 is an apocalyptic number.

It is an amenable number.

636034361 is a deficient number, since it is larger than the sum of its proper divisors (1).

636034361 is an equidigital number, since it uses as much as digits as its factorization.

636034361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 636034361 is about 25219.7216677742. The cubic root of 636034361 is about 859.9902473204.

Adding to 636034361 its reverse (163430636), we get a palindrome (799464997).

The spelling of 636034361 in words is "six hundred thirty-six million, thirty-four thousand, three hundred sixty-one".