23766013 has 2 divisors, whose sum is σ = 23766014. Its totient is φ = 23766012.

The previous prime is 23766011. The next prime is 23766023. The reversal of 23766013 is 31066732.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23454649 + 311364 = 4843^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 23766013 - 2¹ = 23766011 is a prime.

Together with 23766011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23766011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11883006 + 11883007.

It is an arithmetic number, because the mean of its divisors is an integer number (11883007).

Almost surely, 2^23766013 is an apocalyptic number.

It is an amenable number.

23766013 is a deficient number, since it is larger than the sum of its proper divisors (1).

23766013 is an equidigital number, since it uses as much as digits as its factorization.

23766013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 23766013 is about 4875.0397947094. The cubic root of 23766013 is about 287.5094408998.

The spelling of 23766013 in words is "twenty-three million, seven hundred sixty-six thousand, thirteen".