632581313 has 8 divisors (see below), whose sum is σ = 778561728. Its totient is φ = 500503824.

The previous prime is 632581289. The next prime is 632581331. The reversal of 632581313 is 313185236.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 632581313 - 2⁶ = 632581249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 632581313.

It is not an unprimeable number, because it can be changed into a prime (632581513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3475631 + ... + 3475812.

It is an arithmetic number, because the mean of its divisors is an integer number (97320216).

Almost surely, 2^632581313 is an apocalyptic number.

It is an amenable number.

632581313 is a deficient number, since it is larger than the sum of its proper divisors (145980415).

632581313 is a wasteful number, since it uses less digits than its factorization.

632581313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6951463.

The product of its digits is 12960, while the sum is 32.

The square root of 632581313 is about 25151.1692173545. The cubic root of 632581313 is about 858.4311188392.

The spelling of 632581313 in words is "six hundred thirty-two million, five hundred eighty-one thousand, three hundred thirteen".