313328889 has 6 divisors (see below), whose sum is σ = 452586186. Its totient is φ = 208885920.

The previous prime is 313328857. The next prime is 313328891. The reversal of 313328889 is 988823313.

313328889 is a `hidden beast` number, since 313 + 328 + 8 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 309056400 + 4272489 = 17580^2 + 2067^2 .

It is not a de Polignac number, because 313328889 - 2⁵ = 313328857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313329889) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17407152 + ... + 17407169.

It is an arithmetic number, because the mean of its divisors is an integer number (75431031).

Almost surely, 2^313328889 is an apocalyptic number.

It is an amenable number.

313328889 is a deficient number, since it is larger than the sum of its proper divisors (139257297).

313328889 is a wasteful number, since it uses less digits than its factorization.

313328889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34814327 (or 34814324 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 313328889 is about 17701.0985252328. The cubic root of 313328889 is about 679.2038613593.

The spelling of 313328889 in words is "three hundred thirteen million, three hundred twenty-eight thousand, eight hundred eighty-nine".