235623 has 4 divisors (see below), whose sum is σ = 314168. Its totient is φ = 157080.

The previous prime is 235621. The next prime is 235661. The reversal of 235623 is 326532.

235623 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 235623 - 2¹ = 235621 is a prime.

It is a D-number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 235623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235621) 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, 39268 + ... + 39273.

It is an arithmetic number, because the mean of its divisors is an integer number (78542).

2²³⁵⁶²³ is an apocalyptic number.

235623 is a deficient number, since it is larger than the sum of its proper divisors (78545).

235623 is an equidigital number, since it uses as much as digits as its factorization.

235623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78544.

The product of its digits is 1080, while the sum is 21.

The square root of 235623 is about 485.4101358645. The cubic root of 235623 is about 61.7645422431.

Subtracting 235623 from its reverse (326532), we obtain a palindrome (90909).

It can be divided in two parts, 235 and 623, that added together give a palindrome (858).

The spelling of 235623 in words is "two hundred thirty-five thousand, six hundred twenty-three".