313011887 has 4 divisors (see below), whose sum is σ = 313682616. Its totient is φ = 312341160.

The previous prime is 313011883. The next prime is 313011893. The reversal of 313011887 is 788110313.

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

It is a cyclic number.

It is not a de Polignac number, because 313011887 - 2² = 313011883 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 (313011883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334664 + ... + 335597.

It is an arithmetic number, because the mean of its divisors is an integer number (78420654).

Almost surely, 2^313011887 is an apocalyptic number.

313011887 is a deficient number, since it is larger than the sum of its proper divisors (670729).

313011887 is an equidigital number, since it uses as much as digits as its factorization.

313011887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670728.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 313011887 is about 17692.1419562471. The cubic root of 313011887 is about 678.9747287111.

The spelling of 313011887 in words is "three hundred thirteen million, eleven thousand, eight hundred eighty-seven".