633960685 has 12 divisors (see below), whose sum is σ = 805798044. Its totient is φ = 477160320.

The previous prime is 633960647. The next prime is 633960703. The reversal of 633960685 is 586069336.

It can be written as a sum of positive squares in 2 ways, for example, as 365459689 + 268500996 = 19117^2 + 16386^2 .

It is not a de Polignac number, because 633960685 - 2²⁵ = 600406253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 230770 + ... + 233500.

It is an arithmetic number, because the mean of its divisors is an integer number (67149837).

Almost surely, 2^633960685 is an apocalyptic number.

It is an amenable number.

633960685 is a deficient number, since it is larger than the sum of its proper divisors (171837359).

633960685 is an frugal number, since it uses more digits than its factorization.

633960685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5484 (or 2753 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The square root of 633960685 is about 25178.5759128669. The cubic root of 633960685 is about 859.0546150907.

The spelling of 633960685 in words is "six hundred thirty-three million, nine hundred sixty thousand, six hundred eighty-five".