313623881 has 8 divisors (see below), whose sum is σ = 320358240. Its totient is φ = 306936928.

The previous prime is 313623857. The next prime is 313623889. The reversal of 313623881 is 188326313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313623881 is a prime.

It is a super-2 number, since 2×313623881² = 196719877467004322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313623889) 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, 1685 + ... + 25101.

It is an arithmetic number, because the mean of its divisors is an integer number (40044780).

Almost surely, 2^313623881 is an apocalyptic number.

It is an amenable number.

313623881 is a deficient number, since it is larger than the sum of its proper divisors (6734359).

313623881 is a wasteful number, since it uses less digits than its factorization.

313623881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23703.

The product of its digits is 20736, while the sum is 35.

The square root of 313623881 is about 17709.4291551140. The cubic root of 313623881 is about 679.4169461480.

The spelling of 313623881 in words is "three hundred thirteen million, six hundred twenty-three thousand, eight hundred eighty-one".