23884621 has 2 divisors, whose sum is σ = 23884622. Its totient is φ = 23884620.

The previous prime is 23884589. The next prime is 23884631. The reversal of 23884621 is 12648832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22705225 + 1179396 = 4765^2 + 1086^2 .

It is a cyclic number.

It is not a de Polignac number, because 23884621 - 2⁵ = 23884589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23884631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11942310 + 11942311.

It is an arithmetic number, because the mean of its divisors is an integer number (11942311).

Almost surely, 2^23884621 is an apocalyptic number.

It is an amenable number.

23884621 is a deficient number, since it is larger than the sum of its proper divisors (1).

23884621 is an equidigital number, since it uses as much as digits as its factorization.

23884621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 34.

The square root of 23884621 is about 4887.1894786267. The cubic root of 23884621 is about 287.9869343674.

The spelling of 23884621 in words is "twenty-three million, eight hundred eighty-four thousand, six hundred twenty-one".