313693 has 6 divisors (see below), whose sum is σ = 325754. Its totient is φ = 302064.

The previous prime is 313679. The next prime is 313699. The reversal of 313693 is 396313.

It can be written as a sum of positive squares in 3 ways, for example, as 56644 + 257049 = 238^2 + 507^2 .

It is not a de Polignac number, because 313693 - 2⁵ = 313661 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 (313699) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 655 + ... + 1027.

2³¹³⁶⁹³ is an apocalyptic number.

It is an amenable number.

313693 is a deficient number, since it is larger than the sum of its proper divisors (12061).

313693 is an equidigital number, since it uses as much as digits as its factorization.

313693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 402 counting only the distinct ones).

The product of its digits is 1458, while the sum is 25.

The square root of 313693 is about 560.0830295590. The cubic root of 313693 is about 67.9466854306.

The spelling of 313693 in words is "three hundred thirteen thousand, six hundred ninety-three".