23319871 has 2 divisors, whose sum is σ = 23319872. Its totient is φ = 23319870.

The previous prime is 23319853. The next prime is 23319887. The reversal of 23319871 is 17891332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23319871 - 2⁷ = 23319743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23319811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11659935 + 11659936.

It is an arithmetic number, because the mean of its divisors is an integer number (11659936).

Almost surely, 2^23319871 is an apocalyptic number.

23319871 is a deficient number, since it is larger than the sum of its proper divisors (1).

23319871 is an equidigital number, since it uses as much as digits as its factorization.

23319871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 23319871 is about 4829.0652304561. The cubic root of 23319871 is about 285.6989962414.

The spelling of 23319871 in words is "twenty-three million, three hundred nineteen thousand, eight hundred seventy-one".