23650661 has 2 divisors, whose sum is σ = 23650662. Its totient is φ = 23650660.

The previous prime is 23650651. The next prime is 23650663. The reversal of 23650661 is 16605632.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17430625 + 6220036 = 4175^2 + 2494^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23650661 is a prime.

It is a Sophie Germain prime.

Together with 23650663, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23650663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11825330 + 11825331.

It is an arithmetic number, because the mean of its divisors is an integer number (11825331).

Almost surely, 2^23650661 is an apocalyptic number.

It is an amenable number.

23650661 is a deficient number, since it is larger than the sum of its proper divisors (1).

23650661 is an equidigital number, since it uses as much as digits as its factorization.

23650661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 23650661 is about 4863.1945262348. The cubic root of 23650661 is about 287.0435291938.

The spelling of 23650661 in words is "twenty-three million, six hundred fifty thousand, six hundred sixty-one".