313210987 has 8 divisors (see below), whose sum is σ = 327027456. Its totient is φ = 299411112.

The previous prime is 313210981. The next prime is 313211053. The reversal of 313210987 is 789012313.

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 313210987 - 2³ = 313210979 is a prime.

It is a super-2 number, since 2×313210987² = 196202244755028338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313210981) 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, 49138 + ... + 55144.

It is an arithmetic number, because the mean of its divisors is an integer number (40878432).

Almost surely, 2^313210987 is an apocalyptic number.

313210987 is a deficient number, since it is larger than the sum of its proper divisors (13816469).

313210987 is a wasteful number, since it uses less digits than its factorization.

313210987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8297.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 313210987 is about 17697.7678536023. The cubic root of 313210987 is about 679.1186585124.

The spelling of 313210987 in words is "three hundred thirteen million, two hundred ten thousand, nine hundred eighty-seven".