6780672 has 108 divisors (see below), whose sum is σ = 20460440. Its totient is φ = 2239488.

The previous prime is 6780629. The next prime is 6780679. The reversal of 6780672 is 2760876.

It is a tau number, because it is divible by the number of its divisors (108).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6780679) 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 11 ways as a sum of consecutive naturals, for example, 62154 + ... + 62262.

Almost surely, 2^6780672 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 6780672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10230220).

6780672 is an abundant number, since it is smaller than the sum of its proper divisors (13679768).

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

6780672 is an equidigital number, since it uses as much as digits as its factorization.

6780672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 6780672 is about 2603.9723500836. The cubic root of 6780672 is about 189.2739790585.

The spelling of 6780672 in words is "six million, seven hundred eighty thousand, six hundred seventy-two".