13283784 has 64 divisors (see below), whose sum is σ = 37368000. Its totient is φ = 4371840.

The previous prime is 13283759. The next prime is 13283789. The reversal of 13283784 is 48738231.

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

It is not an unprimeable number, because it can be changed into a prime (13283789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18879 + ... + 19569.

It is an arithmetic number, because the mean of its divisors is an integer number (583875).

Almost surely, 2^13283784 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 13283784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18684000).

13283784 is an abundant number, since it is smaller than the sum of its proper divisors (24084216).

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

13283784 is a wasteful number, since it uses less digits than its factorization.

13283784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795 (or 785 counting only the distinct ones).

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

The square root of 13283784 is about 3644.6925796286. The cubic root of 13283784 is about 236.8321195322.

The spelling of 13283784 in words is "thirteen million, two hundred eighty-three thousand, seven hundred eighty-four".