313447 has 4 divisors (see below), whose sum is σ = 314776. Its totient is φ = 312120.

The previous prime is 313409. The next prime is 313471. The reversal of 313447 is 744313.

It is a happy number.

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-313447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313477) 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, 204 + ... + 817.

It is an arithmetic number, because the mean of its divisors is an integer number (78694).

2³¹³⁴⁴⁷ is an apocalyptic number.

313447 is a deficient number, since it is larger than the sum of its proper divisors (1329).

313447 is a wasteful number, since it uses less digits than its factorization.

313447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1328.

The product of its digits is 1008, while the sum is 22.

The square root of 313447 is about 559.8633761910. The cubic root of 313447 is about 67.9289193814.

The spelling of 313447 in words is "three hundred thirteen thousand, four hundred forty-seven".