23425287 has 4 divisors (see below), whose sum is σ = 31233720. Its totient is φ = 15616856.

The previous prime is 23425267. The next prime is 23425291. The reversal of 23425287 is 78252432.

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 23425287 - 2¹⁰ = 23424263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23425267) 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, 3904212 + ... + 3904217.

It is an arithmetic number, because the mean of its divisors is an integer number (7808430).

Almost surely, 2^23425287 is an apocalyptic number.

23425287 is a deficient number, since it is larger than the sum of its proper divisors (7808433).

23425287 is an equidigital number, since it uses as much as digits as its factorization.

23425287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7808432.

The product of its digits is 26880, while the sum is 33.

The square root of 23425287 is about 4839.9676651812. The cubic root of 23425287 is about 286.1288439305.

The spelling of 23425287 in words is "twenty-three million, four hundred twenty-five thousand, two hundred eighty-seven".