23865245 has 4 divisors (see below), whose sum is σ = 28638300. Its totient is φ = 19092192.

The previous prime is 23865241. The next prime is 23865269. The reversal of 23865245 is 54256832.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3407716 + 20457529 = 1846^2 + 4523^2 .

It is a cyclic number.

It is not a de Polignac number, because 23865245 - 2² = 23865241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23865241) 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, 2386520 + ... + 2386529.

It is an arithmetic number, because the mean of its divisors is an integer number (7159575).

Almost surely, 2^23865245 is an apocalyptic number.

It is an amenable number.

23865245 is a deficient number, since it is larger than the sum of its proper divisors (4773055).

23865245 is an equidigital number, since it uses as much as digits as its factorization.

23865245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4773054.

The product of its digits is 57600, while the sum is 35.

The square root of 23865245 is about 4885.2067509984. The cubic root of 23865245 is about 287.9090384356.

The spelling of 23865245 in words is "twenty-three million, eight hundred sixty-five thousand, two hundred forty-five".