24998399 has 2 divisors, whose sum is σ = 24998400. Its totient is φ = 24998398.

The previous prime is 24998383. The next prime is 24998417. The reversal of 24998399 is 99389942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 24998399 - 2⁴ = 24998383 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 24998399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24991399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12499199 + 12499200.

It is an arithmetic number, because the mean of its divisors is an integer number (12499200).

Almost surely, 2^24998399 is an apocalyptic number.

24998399 is a deficient number, since it is larger than the sum of its proper divisors (1).

24998399 is an equidigital number, since it uses as much as digits as its factorization.

24998399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1259712, while the sum is 53.

The square root of 24998399 is about 4999.8398974367. The cubic root of 24998399 is about 292.3955318848.

The spelling of 24998399 in words is "twenty-four million, nine hundred ninety-eight thousand, three hundred ninety-nine".