23396861 has 2 divisors, whose sum is σ = 23396862. Its totient is φ = 23396860.

The previous prime is 23396827. The next prime is 23396917. The reversal of 23396861 is 16869332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16605625 + 6791236 = 4075^2 + 2606^2 .

It is a cyclic number.

It is not a de Polignac number, because 23396861 - 2¹⁴ = 23380477 is a prime.

It is a Sophie Germain 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 (23396801) 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, 11698430 + 11698431.

It is an arithmetic number, because the mean of its divisors is an integer number (11698431).

Almost surely, 2^23396861 is an apocalyptic number.

It is an amenable number.

23396861 is a deficient number, since it is larger than the sum of its proper divisors (1).

23396861 is an equidigital number, since it uses as much as digits as its factorization.

23396861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 38.

The square root of 23396861 is about 4837.0301839042. The cubic root of 23396861 is about 286.0130603520.

The spelling of 23396861 in words is "twenty-three million, three hundred ninety-six thousand, eight hundred sixty-one".