6729984 has 108 divisors (see below), whose sum is σ = 20407296. Its totient is φ = 2128896.

The previous prime is 6729911. The next prime is 6729991. The reversal of 6729984 is 4899276.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52929 + ... + 53055.

Almost surely, 2^6729984 is an apocalyptic number.

6729984 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6729984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10203648).

6729984 is an abundant number, since it is smaller than the sum of its proper divisors (13677312).

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

6729984 is a wasteful number, since it uses less digits than its factorization.

6729984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 155 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 6729984 is about 2594.2212704394. The cubic root of 6729984 is about 188.8011682394.

The spelling of 6729984 in words is "six million, seven hundred twenty-nine thousand, nine hundred eighty-four".