23871601 has 4 divisors (see below), whose sum is σ = 25707892. Its totient is φ = 22035312.

The previous prime is 23871599. The next prime is 23871613. The reversal of 23871601 is 10617832.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1299600 + 22572001 = 1140^2 + 4751^2 .

It is not a de Polignac number, because 23871601 - 2¹ = 23871599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23871601.

It is not an unprimeable number, because it can be changed into a prime (23871641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 918126 + ... + 918151.

It is an arithmetic number, because the mean of its divisors is an integer number (6426973).

Almost surely, 2^23871601 is an apocalyptic number.

It is an amenable number.

23871601 is a deficient number, since it is larger than the sum of its proper divisors (1836291).

23871601 is a wasteful number, since it uses less digits than its factorization.

23871601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836290.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 23871601 is about 4885.8572431048. The cubic root of 23871601 is about 287.9345956482.

The spelling of 23871601 in words is "twenty-three million, eight hundred seventy-one thousand, six hundred one".