232399 has 4 divisors (see below), whose sum is σ = 233464. Its totient is φ = 231336.

The previous prime is 232391. The next prime is 232409. The reversal of 232399 is 993232.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 232399 - 2³ = 232391 is a prime.

It is a Duffinian number.

232399 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232391) 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, 72 + ... + 685.

It is an arithmetic number, because the mean of its divisors is an integer number (58366).

2²³²³⁹⁹ is an apocalyptic number.

232399 is a deficient number, since it is larger than the sum of its proper divisors (1065).

232399 is an equidigital number, since it uses as much as digits as its factorization.

232399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064.

The product of its digits is 2916, while the sum is 28.

The square root of 232399 is about 482.0777945519. The cubic root of 232399 is about 61.4815420405.

The spelling of 232399 in words is "two hundred thirty-two thousand, three hundred ninety-nine".