23871247 has 4 divisors (see below), whose sum is σ = 25275456. Its totient is φ = 22467040.

The previous prime is 23871227. The next prime is 23871259. The reversal of 23871247 is 74217832.

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

It is a cyclic number.

It is not a de Polignac number, because 23871247 - 2¹¹ = 23869199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23871227) 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, 702079 + ... + 702112.

It is an arithmetic number, because the mean of its divisors is an integer number (6318864).

Almost surely, 2^23871247 is an apocalyptic number.

23871247 is a deficient number, since it is larger than the sum of its proper divisors (1404209).

23871247 is a wasteful number, since it uses less digits than its factorization.

23871247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1404208.

The product of its digits is 18816, while the sum is 34.

The square root of 23871247 is about 4885.8210159604. The cubic root of 23871247 is about 287.9331723481.

The spelling of 23871247 in words is "twenty-three million, eight hundred seventy-one thousand, two hundred forty-seven".