399233 has 4 divisors (see below), whose sum is σ = 404928. Its totient is φ = 393540.

The previous prime is 399227. The next prime is 399239. The reversal of 399233 is 332993.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (399227) and next prime (399239).

It is a cyclic number.

It is not a de Polignac number, because 399233 - 2⁸ = 398977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 399196 and 399205.

It is not an unprimeable number, because it can be changed into a prime (399239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2741 + ... + 2882.

It is an arithmetic number, because the mean of its divisors is an integer number (101232).

2³⁹⁹²³³ is an apocalyptic number.

It is an amenable number.

399233 is a deficient number, since it is larger than the sum of its proper divisors (5695).

399233 is an equidigital number, since it uses as much as digits as its factorization.

399233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694.

The product of its digits is 4374, while the sum is 29.

The square root of 399233 is about 631.8488743363. The cubic root of 399233 is about 73.6335056370.

The spelling of 399233 in words is "three hundred ninety-nine thousand, two hundred thirty-three".