23257871 has 16 divisors (see below), whose sum is σ = 28858368. Its totient is φ = 18252000.

The previous prime is 23257849. The next prime is 23257877. The reversal of 23257871 is 17875232.

It is not a de Polignac number, because 23257871 - 2¹⁸ = 22995727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23257877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10946 + ... + 12896.

It is an arithmetic number, because the mean of its divisors is an integer number (1803648).

Almost surely, 2^23257871 is an apocalyptic number.

23257871 is a deficient number, since it is larger than the sum of its proper divisors (5600497).

23257871 is a wasteful number, since it uses less digits than its factorization.

23257871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102.

The product of its digits is 23520, while the sum is 35.

The square root of 23257871 is about 4822.6414961098. The cubic root of 23257871 is about 285.4455777582.

The spelling of 23257871 in words is "twenty-three million, two hundred fifty-seven thousand, eight hundred seventy-one".