23888661 has 4 divisors (see below), whose sum is σ = 31851552. Its totient is φ = 15925772.

The previous prime is 23888659. The next prime is 23888671. The reversal of 23888661 is 16688832.

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 23888661 - 2¹ = 23888659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23888611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3981441 + ... + 3981446.

It is an arithmetic number, because the mean of its divisors is an integer number (7962888).

Almost surely, 2^23888661 is an apocalyptic number.

It is an amenable number.

23888661 is a deficient number, since it is larger than the sum of its proper divisors (7962891).

23888661 is an equidigital number, since it uses as much as digits as its factorization.

23888661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7962890.

The product of its digits is 110592, while the sum is 42.

The square root of 23888661 is about 4887.6027866430. The cubic root of 23888661 is about 288.0031707791.

The spelling of 23888661 in words is "twenty-three million, eight hundred eighty-eight thousand, six hundred sixty-one".