23910661 has 4 divisors (see below), whose sum is σ = 23940000. Its totient is φ = 23881324.

The previous prime is 23910659. The next prime is 23910701. The reversal of 23910661 is 16601932.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23910661 - 2¹ = 23910659 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 (23910631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13411 + ... + 15088.

It is an arithmetic number, because the mean of its divisors is an integer number (5985000).

Almost surely, 2^23910661 is an apocalyptic number.

It is an amenable number.

23910661 is a deficient number, since it is larger than the sum of its proper divisors (29339).

23910661 is an equidigital number, since it uses as much as digits as its factorization.

23910661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29338.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 23910661 is about 4889.8528607720. The cubic root of 23910661 is about 288.0915547717.

The spelling of 23910661 in words is "twenty-three million, nine hundred ten thousand, six hundred sixty-one".