6383664 has 80 divisors (see below), whose sum is σ = 20951040. Its totient is φ = 1823040.

The previous prime is 6383621. The next prime is 6383669. The reversal of 6383664 is 4663836.

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 not an unprimeable number, because it can be changed into a prime (6383669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1969 + ... + 4079.

It is an arithmetic number, because the mean of its divisors is an integer number (261888).

Almost surely, 2^6383664 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 6383664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10475520).

6383664 is an abundant number, since it is smaller than the sum of its proper divisors (14567376).

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

6383664 is a wasteful number, since it uses less digits than its factorization.

6383664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135 (or 2123 counting only the distinct ones).

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

The square root of 6383664 is about 2526.5913797051. The cubic root of 6383664 is about 185.5054500086.

The spelling of 6383664 in words is "six million, three hundred eighty-three thousand, six hundred sixty-four".