6729380 has 48 divisors (see below), whose sum is σ = 16402176. Its totient is φ = 2271360.

The previous prime is 6729377. The next prime is 6729383. The reversal of 6729380 is 839276.

It is an interprime number because it is at equal distance from previous prime (6729377) and next prime (6729383).

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 6729380.

It is not an unprimeable number, because it can be changed into a prime (6729383) 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, 9602 + ... + 10278.

It is an arithmetic number, because the mean of its divisors is an integer number (341712).

Almost surely, 2^6729380 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 6729380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8201088).

6729380 is an abundant number, since it is smaller than the sum of its proper divisors (9672796).

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

6729380 is a wasteful number, since it uses less digits than its factorization.

6729380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764 (or 762 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 6729380 is about 2594.1048552439. The cubic root of 6729380 is about 188.7955199191.

The spelling of 6729380 in words is "six million, seven hundred twenty-nine thousand, three hundred eighty".