23327191 has 2 divisors, whose sum is σ = 23327192. Its totient is φ = 23327190.

The previous prime is 23327173. The next prime is 23327207. The reversal of 23327191 is 19172332.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23327191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23327141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11663595 + 11663596.

It is an arithmetic number, because the mean of its divisors is an integer number (11663596).

Almost surely, 2^23327191 is an apocalyptic number.

23327191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23327191 is an equidigital number, since it uses as much as digits as its factorization.

23327191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 23327191 is about 4829.8230816460. The cubic root of 23327191 is about 285.7288863134.

The spelling of 23327191 in words is "twenty-three million, three hundred twenty-seven thousand, one hundred ninety-one".