24427661 has 2 divisors, whose sum is σ = 24427662. Its totient is φ = 24427660.

The previous prime is 24427651. The next prime is 24427727. The reversal of 24427661 is 16672442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18576100 + 5851561 = 4310^2 + 2419^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24427661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24427631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12213830 + 12213831.

It is an arithmetic number, because the mean of its divisors is an integer number (12213831).

Almost surely, 2^24427661 is an apocalyptic number.

It is an amenable number.

24427661 is a deficient number, since it is larger than the sum of its proper divisors (1).

24427661 is an equidigital number, since it uses as much as digits as its factorization.

24427661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 32.

The square root of 24427661 is about 4942.4347238987. The cubic root of 24427661 is about 290.1531533481.

The spelling of 24427661 in words is "twenty-four million, four hundred twenty-seven thousand, six hundred sixty-one".