23745621 has 8 divisors (see below), whose sum is σ = 31684864. Its totient is φ = 15818400.

The previous prime is 23745619. The next prime is 23745629. The reversal of 23745621 is 12654732.

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

It is not a de Polignac number, because 23745621 - 2¹ = 23745619 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23745629) 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, 3825 + ... + 7881.

It is an arithmetic number, because the mean of its divisors is an integer number (3960608).

Almost surely, 2^23745621 is an apocalyptic number.

It is an amenable number.

23745621 is a deficient number, since it is larger than the sum of its proper divisors (7939243).

23745621 is a wasteful number, since it uses less digits than its factorization.

23745621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011.

The product of its digits is 10080, while the sum is 30.

The square root of 23745621 is about 4872.9478757729. The cubic root of 23745621 is about 287.4271866015.

The spelling of 23745621 in words is "twenty-three million, seven hundred forty-five thousand, six hundred twenty-one".