23986816 has 64 divisors (see below), whose sum is σ = 57528000. Its totient is φ = 9732096.

The previous prime is 23986811. The next prime is 23986817. The reversal of 23986816 is 61868932.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (23986811) 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, 16320 + ... + 17728.

It is an arithmetic number, because the mean of its divisors is an integer number (898875).

Almost surely, 2^23986816 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 23986816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28764000).

23986816 is an abundant number, since it is smaller than the sum of its proper divisors (33541184).

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

23986816 is a wasteful number, since it uses less digits than its factorization.

23986816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449 (or 1437 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 23986816 is about 4897.6337143564. The cubic root of 23986816 is about 288.3970860026.

The spelling of 23986816 in words is "twenty-three million, nine hundred eighty-six thousand, eight hundred sixteen".