23772191 has 2 divisors, whose sum is σ = 23772192. Its totient is φ = 23772190.

The previous prime is 23772139. The next prime is 23772193. The reversal of 23772191 is 19127732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23772191 - 2¹⁴ = 23755807 is a prime.

Together with 23772193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23772193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11886095 + 11886096.

It is an arithmetic number, because the mean of its divisors is an integer number (11886096).

Almost surely, 2^23772191 is an apocalyptic number.

23772191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23772191 is an equidigital number, since it uses as much as digits as its factorization.

23772191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 32.

The square root of 23772191 is about 4875.6733893894. The cubic root of 23772191 is about 287.5343515350.

The spelling of 23772191 in words is "twenty-three million, seven hundred seventy-two thousand, one hundred ninety-one".