24400993 has 2 divisors, whose sum is σ = 24400994. Its totient is φ = 24400992.

The previous prime is 24400991. The next prime is 24401023. The reversal of 24400993 is 39900442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18215824 + 6185169 = 4268^2 + 2487^2 .

It is a cyclic number.

It is not a de Polignac number, because 24400993 - 2¹ = 24400991 is a prime.

Together with 24400991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (24400991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12200496 + 12200497.

It is an arithmetic number, because the mean of its divisors is an integer number (12200497).

Almost surely, 2^24400993 is an apocalyptic number.

It is an amenable number.

24400993 is a deficient number, since it is larger than the sum of its proper divisors (1).

24400993 is an equidigital number, since it uses as much as digits as its factorization.

24400993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 24400993 is about 4939.7361265557. The cubic root of 24400993 is about 290.0475268915.

The spelling of 24400993 in words is "twenty-four million, four hundred thousand, nine hundred ninety-three".