23445823 has 4 divisors (see below), whose sum is σ = 23568768. Its totient is φ = 23322880.

The previous prime is 23445817. The next prime is 23445847. The reversal of 23445823 is 32854432.

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 23445823 - 2¹⁷ = 23314751 is a prime.

It is a super-2 number, since 2×23445823² = 1099413232294658, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23445803) 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, 61186 + ... + 61567.

It is an arithmetic number, because the mean of its divisors is an integer number (5892192).

Almost surely, 2^23445823 is an apocalyptic number.

23445823 is a deficient number, since it is larger than the sum of its proper divisors (122945).

23445823 is a wasteful number, since it uses less digits than its factorization.

23445823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122944.

The product of its digits is 23040, while the sum is 31.

The square root of 23445823 is about 4842.0887022028. The cubic root of 23445823 is about 286.2124320306.

The spelling of 23445823 in words is "twenty-three million, four hundred forty-five thousand, eight hundred twenty-three".