313989443 has 8 divisors (see below), whose sum is σ = 315802800. Its totient is φ = 312181408.

The previous prime is 313989427. The next prime is 313989479. The reversal of 313989443 is 344989313.

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

It is a cyclic number.

It is not a de Polignac number, because 313989443 - 2⁴ = 313989427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313989394 and 313989403.

It is not an unprimeable number, because it can be changed into a prime (313989743) 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, 182873 + ... + 184581.

It is an arithmetic number, because the mean of its divisors is an integer number (39475350).

Almost surely, 2^313989443 is an apocalyptic number.

313989443 is a deficient number, since it is larger than the sum of its proper divisors (1813357).

313989443 is a wasteful number, since it uses less digits than its factorization.

313989443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2661.

The product of its digits is 279936, while the sum is 44.

The square root of 313989443 is about 17719.7472611773. The cubic root of 313989443 is about 679.6808212279.

It can be divided in two parts, 313989 and 443, that added together give a cube (314432 = 68³).

The spelling of 313989443 in words is "three hundred thirteen million, nine hundred eighty-nine thousand, four hundred forty-three".