23396581 has 8 divisors (see below), whose sum is σ = 26522720. Its totient is φ = 20459952.

The previous prime is 23396579. The next prime is 23396623. The reversal of 23396581 is 18569332.

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 23396581 - 2¹ = 23396579 is a prime.

It is a super-2 number, since 2×23396581² = 1094800004979122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23396581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23396501) 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, 47115 + ... + 47608.

It is an arithmetic number, because the mean of its divisors is an integer number (3315340).

Almost surely, 2^23396581 is an apocalyptic number.

It is an amenable number.

23396581 is a deficient number, since it is larger than the sum of its proper divisors (3126139).

23396581 is a wasteful number, since it uses less digits than its factorization.

23396581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94755.

The product of its digits is 38880, while the sum is 37.

The square root of 23396581 is about 4837.0012404381. The cubic root of 23396581 is about 286.0119194015.

The spelling of 23396581 in words is "twenty-three million, three hundred ninety-six thousand, five hundred eighty-one".