23172385 has 8 divisors (see below), whose sum is σ = 29016000. Its totient is φ = 17731824.

The previous prime is 23172379. The next prime is 23172389. The reversal of 23172385 is 58327132.

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 23172385 - 2⁹ = 23171873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23172389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100635 + ... + 100864.

It is an arithmetic number, because the mean of its divisors is an integer number (3627000).

Almost surely, 2^23172385 is an apocalyptic number.

It is an amenable number.

23172385 is a deficient number, since it is larger than the sum of its proper divisors (5843615).

23172385 is a wasteful number, since it uses less digits than its factorization.

23172385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201527.

The product of its digits is 10080, while the sum is 31.

The square root of 23172385 is about 4813.7703518136. The cubic root of 23172385 is about 285.0954230589.

The spelling of 23172385 in words is "twenty-three million, one hundred seventy-two thousand, three hundred eighty-five".