24766661 has 2 divisors, whose sum is σ = 24766662. Its totient is φ = 24766660.

The previous prime is 24766649. The next prime is 24766663. The reversal of 24766661 is 16666742.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18541636 + 6225025 = 4306^2 + 2495^2 .

It is a cyclic number.

It is not a de Polignac number, because 24766661 - 2⁶ = 24766597 is a prime.

It is a super-2 number, since 2×24766661² = 1226774994177842, which contains 22 as substring.

Together with 24766663, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (24766663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12383330 + 12383331.

It is an arithmetic number, because the mean of its divisors is an integer number (12383331).

Almost surely, 2^24766661 is an apocalyptic number.

It is an amenable number.

24766661 is a deficient number, since it is larger than the sum of its proper divisors (1).

24766661 is an equidigital number, since it uses as much as digits as its factorization.

24766661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 24766661 is about 4976.6113973265. The cubic root of 24766661 is about 291.4892122555.

The spelling of 24766661 in words is "twenty-four million, seven hundred sixty-six thousand, six hundred sixty-one".