23712216 has 32 divisors (see below), whose sum is σ = 64670400. Its totient is φ = 7185440.

The previous prime is 23712211. The next prime is 23712217. The reversal of 23712216 is 61221732.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23712211) 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 7 ways as a sum of consecutive naturals, for example, 44646 + ... + 45173.

It is an arithmetic number, because the mean of its divisors is an integer number (2020950).

Almost surely, 2^23712216 is an apocalyptic number.

It is an amenable number.

23712216 is an abundant number, since it is smaller than the sum of its proper divisors (40958184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23712216 is a wasteful number, since it uses less digits than its factorization.

23712216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89839 (or 89835 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 23712216 is about 4869.5190727627. The cubic root of 23712216 is about 287.2923405302.

Adding to 23712216 its reverse (61221732), we get a palindrome (84933948).

The spelling of 23712216 in words is "twenty-three million, seven hundred twelve thousand, two hundred sixteen".