23216871 has 12 divisors (see below), whose sum is σ = 31820712. Its totient is φ = 15056928.

The previous prime is 23216857. The next prime is 23216873. The reversal of 23216871 is 17861232.

It is not a de Polignac number, because 23216871 - 2¹¹ = 23214823 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1281 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (2651726).

Almost surely, 2^23216871 is an apocalyptic number.

23216871 is a deficient number, since it is larger than the sum of its proper divisors (8603841).

23216871 is an equidigital number, since it uses as much as digits as its factorization.

23216871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5730 (or 5693 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 23216871 is about 4818.3888386057. The cubic root of 23216871 is about 285.2777470850.

The spelling of 23216871 in words is "twenty-three million, two hundred sixteen thousand, eight hundred seventy-one".