313439 has 4 divisors (see below), whose sum is σ = 358224. Its totient is φ = 268656.

The previous prime is 313409. The next prime is 313471. The reversal of 313439 is 934313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313439 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 313439.

It is not an unprimeable number, because it can be changed into a prime (313409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22382 + ... + 22395.

It is an arithmetic number, because the mean of its divisors is an integer number (89556).

2³¹³⁴³⁹ is an apocalyptic number.

313439 is a deficient number, since it is larger than the sum of its proper divisors (44785).

313439 is an equidigital number, since it uses as much as digits as its factorization.

313439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44784.

The product of its digits is 972, while the sum is 23.

The square root of 313439 is about 559.8562315452. The cubic root of 313439 is about 67.9283414676.

The spelling of 313439 in words is "three hundred thirteen thousand, four hundred thirty-nine".