23523621 has 8 divisors (see below), whose sum is σ = 34216224. Its totient is φ = 14256720.

The previous prime is 23523587. The next prime is 23523659. The reversal of 23523621 is 12632532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23523621 - 2⁶ = 23523557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23523591 and 23523600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23523421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356386 + ... + 356451.

It is an arithmetic number, because the mean of its divisors is an integer number (4277028).

Almost surely, 2^23523621 is an apocalyptic number.

It is an amenable number.

23523621 is a deficient number, since it is larger than the sum of its proper divisors (10692603).

23523621 is a wasteful number, since it uses less digits than its factorization.

23523621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712851.

The product of its digits is 2160, while the sum is 24.

The square root of 23523621 is about 4850.1155656335. The cubic root of 23523621 is about 286.5286528425.

The spelling of 23523621 in words is "twenty-three million, five hundred twenty-three thousand, six hundred twenty-one".