24461989 has 2 divisors, whose sum is σ = 24461990. Its totient is φ = 24461988.

The previous prime is 24461981. The next prime is 24461999. The reversal of 24461989 is 98916442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19731364 + 4730625 = 4442^2 + 2175^2 .

It is a cyclic number.

It is not a de Polignac number, because 24461989 - 2³ = 24461981 is a prime.

It is a super-2 number, since 2×24461989² = 1196777811672242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24461981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12230994 + 12230995.

It is an arithmetic number, because the mean of its divisors is an integer number (12230995).

Almost surely, 2^24461989 is an apocalyptic number.

It is an amenable number.

24461989 is a deficient number, since it is larger than the sum of its proper divisors (1).

24461989 is an equidigital number, since it uses as much as digits as its factorization.

24461989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 24461989 is about 4945.9062870216. The cubic root of 24461989 is about 290.2890063788.

The spelling of 24461989 in words is "twenty-four million, four hundred sixty-one thousand, nine hundred eighty-nine".