6663384 has 160 divisors (see below), whose sum is σ = 23173920. Its totient is φ = 1741824.

The previous prime is 6663383. The next prime is 6663389. The reversal of 6663384 is 4833666.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6663383) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 58912 + ... + 59024.

It is an arithmetic number, because the mean of its divisors is an integer number (144837).

Almost surely, 2^6663384 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 6663384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11586960).

6663384 is an abundant number, since it is smaller than the sum of its proper divisors (16510536).

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

6663384 is a wasteful number, since it uses less digits than its factorization.

6663384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 138 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

The square root of 6663384 is about 2581.3531335329. The cubic root of 6663384 is about 188.1763096285.

The spelling of 6663384 in words is "six million, six hundred sixty-three thousand, three hundred eighty-four".