23387971 has 8 divisors (see below), whose sum is σ = 24819264. Its totient is φ = 21962880.

The previous prime is 23387963. The next prime is 23387977. The reversal of 23387971 is 17978332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23387971 - 2³ = 23387963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23387977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7926 + ... + 10468.

It is an arithmetic number, because the mean of its divisors is an integer number (3102408).

Almost surely, 2^23387971 is an apocalyptic number.

23387971 is a deficient number, since it is larger than the sum of its proper divisors (1431293).

23387971 is a wasteful number, since it uses less digits than its factorization.

23387971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3101.

The product of its digits is 63504, while the sum is 40.

The square root of 23387971 is about 4836.1111442977. Note that the first 4 decimals coincide. The cubic root of 23387971 is about 285.9768307310.

The spelling of 23387971 in words is "twenty-three million, three hundred eighty-seven thousand, nine hundred seventy-one".