24204989 has 2 divisors, whose sum is σ = 24204990. Its totient is φ = 24204988.

The previous prime is 24204979. The next prime is 24204997. The reversal of 24204989 is 98940242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15602500 + 8602489 = 3950^2 + 2933^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24204989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24204979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12102494 + 12102495.

It is an arithmetic number, because the mean of its divisors is an integer number (12102495).

Almost surely, 2^24204989 is an apocalyptic number.

It is an amenable number.

24204989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24204989 is an equidigital number, since it uses as much as digits as its factorization.

24204989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 24204989 is about 4919.8566036014. The cubic root of 24204989 is about 289.2688239113.

The spelling of 24204989 in words is "twenty-four million, two hundred four thousand, nine hundred eighty-nine".