313947 has 6 divisors (see below), whose sum is σ = 453492. Its totient is φ = 209292.

The previous prime is 313933. The next prime is 313949. The reversal of 313947 is 749313.

It is not a de Polignac number, because 313947 - 2⁴ = 313931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313947.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313947.

It is not an unprimeable number, because it can be changed into a prime (313949) 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, 17433 + ... + 17450.

It is an arithmetic number, because the mean of its divisors is an integer number (75582).

2³¹³⁹⁴⁷ is an apocalyptic number.

313947 is a deficient number, since it is larger than the sum of its proper divisors (139545).

313947 is a wasteful number, since it uses less digits than its factorization.

313947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34889 (or 34886 counting only the distinct ones).

The product of its digits is 2268, while the sum is 27.

The square root of 313947 is about 560.3097357712. The cubic root of 313947 is about 67.9650194940.

The spelling of 313947 in words is "three hundred thirteen thousand, nine hundred forty-seven".