399135713 has 2 divisors, whose sum is σ = 399135714. Its totient is φ = 399135712.

The previous prime is 399135701. The next prime is 399135731. The reversal of 399135713 is 317531993.

Together with next prime (399135731) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209467729 + 189667984 = 14473^2 + 13772^2 .

It is a cyclic number.

It is not a de Polignac number, because 399135713 - 2¹⁰ = 399134689 is a prime.

It is not a weakly prime, because it can be changed into another prime (399135743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 199567856 + 199567857.

It is an arithmetic number, because the mean of its divisors is an integer number (199567857).

Almost surely, 2^399135713 is an apocalyptic number.

It is an amenable number.

399135713 is a deficient number, since it is larger than the sum of its proper divisors (1).

399135713 is an equidigital number, since it uses as much as digits as its factorization.

399135713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76545, while the sum is 41.

The square root of 399135713 is about 19978.3811406230. The cubic root of 399135713 is about 736.2752402991.

The spelling of 399135713 in words is "three hundred ninety-nine million, one hundred thirty-five thousand, seven hundred thirteen".