23982661 has 2 divisors, whose sum is σ = 23982662. Its totient is φ = 23982660.

The previous prime is 23982653. The next prime is 23982677. The reversal of 23982661 is 16628932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13549761 + 10432900 = 3681^2 + 3230^2 .

It is a cyclic number.

It is not a de Polignac number, because 23982661 - 2³ = 23982653 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23982661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23982641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11991330 + 11991331.

It is an arithmetic number, because the mean of its divisors is an integer number (11991331).

Almost surely, 2^23982661 is an apocalyptic number.

It is an amenable number.

23982661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23982661 is an equidigital number, since it uses as much as digits as its factorization.

23982661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 23982661 is about 4897.2095115484. The cubic root of 23982661 is about 288.3804329783.

The spelling of 23982661 in words is "twenty-three million, nine hundred eighty-two thousand, six hundred sixty-one".