24478889 has 2 divisors, whose sum is σ = 24478890. Its totient is φ = 24478888.

The previous prime is 24478849. The next prime is 24478891. The reversal of 24478889 is 98887442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24334489 + 144400 = 4933^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 24478889 - 2¹⁶ = 24413353 is a prime.

Together with 24478891, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (24478819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12239444 + 12239445.

It is an arithmetic number, because the mean of its divisors is an integer number (12239445).

Almost surely, 2^24478889 is an apocalyptic number.

It is an amenable number.

24478889 is a deficient number, since it is larger than the sum of its proper divisors (1).

24478889 is an equidigital number, since it uses as much as digits as its factorization.

24478889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 50.

The square root of 24478889 is about 4947.6144756842. The cubic root of 24478889 is about 290.3558414301.

The spelling of 24478889 in words is "twenty-four million, four hundred seventy-eight thousand, eight hundred eighty-nine".