313323885 has 36 divisors (see below), whose sum is σ = 631767708. Its totient is φ = 143232768.

The previous prime is 313323883. The next prime is 313323887. The reversal of 313323885 is 588323313.

It is an interprime number because it is at equal distance from previous prime (313323883) and next prime (313323887).

It can be written as a sum of positive squares in 2 ways, for example, as 99082116 + 214241769 = 9954^2 + 14637^2 .

It is not a de Polignac number, because 313323885 - 2¹ = 313323883 is a prime.

It is a super-2 number, since 2×313323885² = 196343713822986450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313323883) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 68844 + ... + 73253.

It is an arithmetic number, because the mean of its divisors is an integer number (17549103).

Almost surely, 2^313323885 is an apocalyptic number.

313323885 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

313323885 is an abundant number, since it is smaller than the sum of its proper divisors (318443823).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313323885 is a wasteful number, since it uses less digits than its factorization.

313323885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142122 (or 142112 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 313323885 is about 17700.9571775088. The cubic root of 313323885 is about 679.2002456121.

The spelling of 313323885 in words is "three hundred thirteen million, three hundred twenty-three thousand, eight hundred eighty-five".