23973824 has 56 divisors (see below), whose sum is σ = 55351680. Its totient is φ = 10089216.

The previous prime is 23973823. The next prime is 23973827. The reversal of 23973824 is 42837932.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23973823) 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, 25979 + ... + 26885.

Almost surely, 2^23973824 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23973824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27675840).

23973824 is an abundant number, since it is smaller than the sum of its proper divisors (31377856).

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

23973824 is an equidigital number, since it uses as much as digits as its factorization.

23973824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985 (or 975 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 23973824 is about 4896.3071799061. The cubic root of 23973824 is about 288.3450083444.

The spelling of 23973824 in words is "twenty-three million, nine hundred seventy-three thousand, eight hundred twenty-four".