399335 has 4 divisors (see below), whose sum is σ = 479208. Its totient is φ = 319464.

The previous prime is 399283. The next prime is 399353. The reversal of 399335 is 533993.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 399335 - 2⁶ = 399271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39929 + ... + 39938.

It is an arithmetic number, because the mean of its divisors is an integer number (119802).

2³⁹⁹³³⁵ is an apocalyptic number.

399335 is a deficient number, since it is larger than the sum of its proper divisors (79873).

399335 is an equidigital number, since it uses as much as digits as its factorization.

399335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79872.

The product of its digits is 10935, while the sum is 32.

The square root of 399335 is about 631.9295846849. The cubic root of 399335 is about 73.6397759754.

The spelling of 399335 in words is "three hundred ninety-nine thousand, three hundred thirty-five".