112643784 has 80 divisors (see below), whose sum is σ = 344211120. Its totient is φ = 34132320.

The previous prime is 112643777. The next prime is 112643813. The reversal of 112643784 is 487346211.

112643784 is a `hidden beast` number, since 1 + 1 + 2 + 643 + 7 + 8 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 774 + ... + 15029.

It is an arithmetic number, because the mean of its divisors is an integer number (4302639).

Almost surely, 2^112643784 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 112643784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172105560).

112643784 is an abundant number, since it is smaller than the sum of its proper divisors (231567336).

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

112643784 is a wasteful number, since it uses less digits than its factorization.

112643784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15832 (or 15819 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 112643784 is about 10613.3775962226. The cubic root of 112643784 is about 482.9502668595.

Adding to 112643784 its reverse (487346211), we get a palindrome (599989995).

The spelling of 112643784 in words is "one hundred twelve million, six hundred forty-three thousand, seven hundred eighty-four".