313489 has 4 divisors (see below), whose sum is σ = 342000. Its totient is φ = 284980.

The previous prime is 313477. The next prime is 313507. The reversal of 313489 is 984313.

313489 = 81² + 82² + ... + 113².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313489 - 2¹³ = 305297 is a prime.

It is a Duffinian number.

313489 is a lucky number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14239 + ... + 14260.

It is an arithmetic number, because the mean of its divisors is an integer number (85500).

2³¹³⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

313489 is a deficient number, since it is larger than the sum of its proper divisors (28511).

313489 is a wasteful number, since it uses less digits than its factorization.

313489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28510.

The product of its digits is 2592, while the sum is 28.

The square root of 313489 is about 559.9008840857. The cubic root of 313489 is about 67.9319532672.

It can be divided in two parts, 3134 and 89, that added together give a palindrome (3223).

The spelling of 313489 in words is "three hundred thirteen thousand, four hundred eighty-nine".