393399 has 6 divisors (see below), whose sum is σ = 568256. Its totient is φ = 262260.

The previous prime is 393383. The next prime is 393401. The reversal of 393399 is 993393.

It is not a de Polignac number, because 393399 - 2⁴ = 393383 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393299) 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, 21847 + ... + 21864.

2³⁹³³⁹⁹ is an apocalyptic number.

393399 is a deficient number, since it is larger than the sum of its proper divisors (174857).

393399 is a wasteful number, since it uses less digits than its factorization.

393399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43717 (or 43714 counting only the distinct ones).

The product of its digits is 19683, while the sum is 36.

The square root of 393399 is about 627.2152740487. The cubic root of 393399 is about 73.2730749250.

The spelling of 393399 in words is "three hundred ninety-three thousand, three hundred ninety-nine".