23660621 has 8 divisors (see below), whose sum is σ = 24286944. Its totient is φ = 23037840.

The previous prime is 23660597. The next prime is 23660627. The reversal of 23660621 is 12606632.

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 23660621 - 2⁶ = 23660557 is a prime.

It is a super-2 number, since 2×23660621² = 1119649972211282, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23660627) 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, 17450 + ... + 18756.

It is an arithmetic number, because the mean of its divisors is an integer number (3035868).

Almost surely, 2^23660621 is an apocalyptic number.

It is an amenable number.

23660621 is a deficient number, since it is larger than the sum of its proper divisors (626323).

23660621 is a wasteful number, since it uses less digits than its factorization.

23660621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1771.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 23660621 is about 4864.2184367070. The cubic root of 23660621 is about 287.0838177410.

The spelling of 23660621 in words is "twenty-three million, six hundred sixty thousand, six hundred twenty-one".