23774189 has 2 divisors, whose sum is σ = 23774190. Its totient is φ = 23774188.

The previous prime is 23774173. The next prime is 23774221. The reversal of 23774189 is 98147732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13801225 + 9972964 = 3715^2 + 3158^2 .

It is a cyclic number.

It is not a de Polignac number, because 23774189 - 2⁴ = 23774173 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23774159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11887094 + 11887095.

It is an arithmetic number, because the mean of its divisors is an integer number (11887095).

Almost surely, 2^23774189 is an apocalyptic number.

It is an amenable number.

23774189 is a deficient number, since it is larger than the sum of its proper divisors (1).

23774189 is an equidigital number, since it uses as much as digits as its factorization.

23774189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 41.

The square root of 23774189 is about 4875.8782798589. The cubic root of 23774189 is about 287.5424068511.

The spelling of 23774189 in words is "twenty-three million, seven hundred seventy-four thousand, one hundred eighty-nine".