313969 has 2 divisors, whose sum is σ = 313970. Its totient is φ = 313968.

The previous prime is 313961. The next prime is 313979. The reversal of 313969 is 969313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 288369 + 25600 = 537^2 + 160^2 .

It is a cyclic number.

It is not a de Polignac number, because 313969 - 2³ = 313961 is a prime.

It is a super-4 number, since 4×313969⁴ (a number of 23 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 313969.

It is not a weakly prime, because it can be changed into another prime (313961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156984 + 156985.

It is an arithmetic number, because the mean of its divisors is an integer number (156985).

2³¹³⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

313969 is a deficient number, since it is larger than the sum of its proper divisors (1).

313969 is an equidigital number, since it uses as much as digits as its factorization.

313969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4374, while the sum is 31.

The square root of 313969 is about 560.3293674260. The cubic root of 313969 is about 67.9666070184.

The spelling of 313969 in words is "three hundred thirteen thousand, nine hundred sixty-nine".