23980189 has 2 divisors, whose sum is σ = 23980190. Its totient is φ = 23980188.

The previous prime is 23980169. The next prime is 23980211. The reversal of 23980189 is 98108932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23863225 + 116964 = 4885^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 23980189 - 2⁹ = 23979677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23980169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11990094 + 11990095.

It is an arithmetic number, because the mean of its divisors is an integer number (11990095).

Almost surely, 2^23980189 is an apocalyptic number.

It is an amenable number.

23980189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23980189 is an equidigital number, since it uses as much as digits as its factorization.

23980189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 23980189 is about 4896.9571164142. The cubic root of 23980189 is about 288.3705244181.

The spelling of 23980189 in words is "twenty-three million, nine hundred eighty thousand, one hundred eighty-nine".