24989189 has 2 divisors, whose sum is σ = 24989190. Its totient is φ = 24989188.

The previous prime is 24989179. The next prime is 24989203. The reversal of 24989189 is 98198942.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21548164 + 3441025 = 4642^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 24989189 - 2¹⁶ = 24923653 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24989179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12494594 + 12494595.

It is an arithmetic number, because the mean of its divisors is an integer number (12494595).

Almost surely, 2^24989189 is an apocalyptic number.

It is an amenable number.

24989189 is a deficient number, since it is larger than the sum of its proper divisors (1).

24989189 is an equidigital number, since it uses as much as digits as its factorization.

24989189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 50.

The square root of 24989189 is about 4998.9187830970. The cubic root of 24989189 is about 292.3596190032.

The spelling of 24989189 in words is "twenty-four million, nine hundred eighty-nine thousand, one hundred eighty-nine".