23478784 has 40 divisors (see below), whose sum is σ = 53621568. Its totient is φ = 10060800.

The previous prime is 23478781. The next prime is 23478787. The reversal of 23478784 is 48787432.

It is an interprime number because it is at equal distance from previous prime (23478781) and next prime (23478787).

It is a self number, because there is not a number n which added to its sum of digits gives 23478784.

It is not an unprimeable number, because it can be changed into a prime (23478781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309 + ... + 6859.

Almost surely, 2^23478784 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 23478784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26810784).

23478784 is an abundant number, since it is smaller than the sum of its proper divisors (30142784).

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

23478784 is an frugal number, since it uses more digits than its factorization.

23478784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6576 (or 6560 counting only the distinct ones).

The product of its digits is 301056, while the sum is 43.

The square root of 23478784 is about 4845.4910999815. The cubic root of 23478784 is about 286.3464918815.

The spelling of 23478784 in words is "twenty-three million, four hundred seventy-eight thousand, seven hundred eighty-four".