635346013 has 2 divisors, whose sum is σ = 635346014. Its totient is φ = 635346012.

The previous prime is 635345999. The next prime is 635346077. The reversal of 635346013 is 310643536.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 635140804 + 205209 = 25202^2 + 453^2 .

It is a cyclic number.

It is not a de Polignac number, because 635346013 - 2²⁵ = 601791581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (635346913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 317673006 + 317673007.

It is an arithmetic number, because the mean of its divisors is an integer number (317673007).

Almost surely, 2^635346013 is an apocalyptic number.

It is an amenable number.

635346013 is a deficient number, since it is larger than the sum of its proper divisors (1).

635346013 is an equidigital number, since it uses as much as digits as its factorization.

635346013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 31.

The square root of 635346013 is about 25206.0709552282. The cubic root of 635346013 is about 859.6798939362.

Adding to 635346013 its reverse (310643536), we get a palindrome (945989549).

The spelling of 635346013 in words is "six hundred thirty-five million, three hundred forty-six thousand, thirteen".