393713 has 2 divisors, whose sum is σ = 393714. Its totient is φ = 393712.

The previous prime is 393709. The next prime is 393721. The reversal of 393713 is 317393.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339889 + 53824 = 583^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 393713 - 2² = 393709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (393013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 196856 + 196857.

It is an arithmetic number, because the mean of its divisors is an integer number (196857).

2³⁹³⁷¹³ is an apocalyptic number.

It is an amenable number.

393713 is a deficient number, since it is larger than the sum of its proper divisors (1).

393713 is an equidigital number, since it uses as much as digits as its factorization.

393713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1701, while the sum is 26.

The square root of 393713 is about 627.4655369022. The cubic root of 393713 is about 73.2925645753.

The spelling of 393713 in words is "three hundred ninety-three thousand, seven hundred thirteen".