23784864 has 24 divisors (see below), whose sum is σ = 62435520. Its totient is φ = 7928256.

The previous prime is 23784809. The next prime is 23784869. The reversal of 23784864 is 46848732.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (23784869) 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 3 ways as a sum of consecutive naturals, for example, 123784 + ... + 123975.

It is an arithmetic number, because the mean of its divisors is an integer number (2601480).

Almost surely, 2^23784864 is an apocalyptic number.

23784864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23784864 is an abundant number, since it is smaller than the sum of its proper divisors (38650656).

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

23784864 is a wasteful number, since it uses less digits than its factorization.

23784864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247772 (or 247764 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 23784864 is about 4876.9728315831. The cubic root of 23784864 is about 287.5854374936.

The spelling of 23784864 in words is "twenty-three million, seven hundred eighty-four thousand, eight hundred sixty-four".