313630887 has 4 divisors (see below), whose sum is σ = 418174520. Its totient is φ = 209087256.

The previous prime is 313630879. The next prime is 313630897. The reversal of 313630887 is 788036313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313630887 - 2³ = 313630879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313630817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52271812 + ... + 52271817.

It is an arithmetic number, because the mean of its divisors is an integer number (104543630).

Almost surely, 2^313630887 is an apocalyptic number.

313630887 is a deficient number, since it is larger than the sum of its proper divisors (104543633).

313630887 is a wasteful number, since it uses less digits than its factorization.

313630887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104543632.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 313630887 is about 17709.6269582394. The cubic root of 313630887 is about 679.4220052437.

The spelling of 313630887 in words is "three hundred thirteen million, six hundred thirty thousand, eight hundred eighty-seven".