235823 has 8 divisors (see below), whose sum is σ = 274560. Its totient is φ = 198360.

The previous prime is 235813. The next prime is 235849. The reversal of 235823 is 328532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 235823 - 2¹⁰ = 234799 is a prime.

It is a super-2 number, since 2×235823² = 111224974658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (34320).

2²³⁵⁸²³ is an apocalyptic number.

235823 is a deficient number, since it is larger than the sum of its proper divisors (38737).

235823 is an equidigital number, since it uses as much as digits as its factorization.

235823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637.

The product of its digits is 1440, while the sum is 23.

The square root of 235823 is about 485.6161035221. The cubic root of 235823 is about 61.7820128282.

The spelling of 235823 in words is "two hundred thirty-five thousand, eight hundred twenty-three".