6800720 has 20 divisors (see below), whose sum is σ = 15811860. Its totient is φ = 2720256.

The previous prime is 6800719. The next prime is 6800737. The reversal of 6800720 is 270086.

It can be written as a sum of positive squares in 2 ways, for example, as 3083536 + 3717184 = 1756^2 + 1928^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 42425 + ... + 42584.

It is an arithmetic number, because the mean of its divisors is an integer number (790593).

Almost surely, 2^6800720 is an apocalyptic number.

It is an amenable number.

6800720 is an abundant number, since it is smaller than the sum of its proper divisors (9011140).

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

6800720 is a wasteful number, since it uses less digits than its factorization.

6800720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85022 (or 85016 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 6800720 is about 2607.8190121249. The cubic root of 6800720 is about 189.4603338005.

The spelling of 6800720 in words is "six million, eight hundred thousand, seven hundred twenty".