23974889 has 2 divisors, whose sum is σ = 23974890. Its totient is φ = 23974888.

The previous prime is 23974837. The next prime is 23974919. The reversal of 23974889 is 98847932.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18835600 + 5139289 = 4340^2 + 2267^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23974889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23974189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11987444 + 11987445.

It is an arithmetic number, because the mean of its divisors is an integer number (11987445).

Almost surely, 2^23974889 is an apocalyptic number.

It is an amenable number.

23974889 is a deficient number, since it is larger than the sum of its proper divisors (1).

23974889 is an equidigital number, since it uses as much as digits as its factorization.

23974889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 870912, while the sum is 50.

The square root of 23974889 is about 4896.4159341298. The cubic root of 23974889 is about 288.3492780413.

The spelling of 23974889 in words is "twenty-three million, nine hundred seventy-four thousand, eight hundred eighty-nine".