23166443 has 2 divisors, whose sum is σ = 23166444. Its totient is φ = 23166442.

The previous prime is 23166439. The next prime is 23166457. The reversal of 23166443 is 34466132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23166443 - 2² = 23166439 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23166343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11583221 + 11583222.

It is an arithmetic number, because the mean of its divisors is an integer number (11583222).

Almost surely, 2^23166443 is an apocalyptic number.

23166443 is a deficient number, since it is larger than the sum of its proper divisors (1).

23166443 is an equidigital number, since it uses as much as digits as its factorization.

23166443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 29.

The square root of 23166443 is about 4813.1531245120. The cubic root of 23166443 is about 285.0710523576.

The spelling of 23166443 in words is "twenty-three million, one hundred sixty-six thousand, four hundred forty-three".