24730661 has 2 divisors, whose sum is σ = 24730662. Its totient is φ = 24730660.

The previous prime is 24730627. The next prime is 24730663. The reversal of 24730661 is 16603742.

24730661 is nontrivially palindromic in base 7.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14394436 + 10336225 = 3794^2 + 3215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24730661 is a prime.

It is a super-2 number, since 2×24730661² = 1223211186993842, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 24730663, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is equal to p_1550198 and since 24730661 and 1550198 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24730663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12365330 + 12365331.

It is an arithmetic number, because the mean of its divisors is an integer number (12365331).

Almost surely, 2^24730661 is an apocalyptic number.

It is an amenable number.

24730661 is a deficient number, since it is larger than the sum of its proper divisors (1).

24730661 is an equidigital number, since it uses as much as digits as its factorization.

24730661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 24730661 is about 4972.9931630759. The cubic root of 24730661 is about 291.3479107408.

The spelling of 24730661 in words is "twenty-four million, seven hundred thirty thousand, six hundred sixty-one".