6680780 has 24 divisors (see below), whose sum is σ = 14768880. Its totient is φ = 2531520.

The previous prime is 6680743. The next prime is 6680789. The reversal of 6680780 is 870866.

It is a self number, because there is not a number n which added to its sum of digits gives 6680780.

It is not an unprimeable number, because it can be changed into a prime (6680789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8411 + ... + 9170.

It is an arithmetic number, because the mean of its divisors is an integer number (615370).

Almost surely, 2^6680780 is an apocalyptic number.

It is an amenable number.

6680780 is an abundant number, since it is smaller than the sum of its proper divisors (8088100).

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

6680780 is a wasteful number, since it uses less digits than its factorization.

6680780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17609 (or 17607 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 6680780 is about 2584.7204877897. The cubic root of 6680780 is about 188.3399237171.

The spelling of 6680780 in words is "six million, six hundred eighty thousand, seven hundred eighty".