6680745 has 64 divisors (see below), whose sum is σ = 13063680. Its totient is φ = 3225600.

The previous prime is 6680743. The next prime is 6680789. The reversal of 6680745 is 5470866.

It is a happy number.

It is not a de Polignac number, because 6680745 - 2¹ = 6680743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6680743) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 94060 + ... + 94130.

It is an arithmetic number, because the mean of its divisors is an integer number (204120).

Almost surely, 2^6680745 is an apocalyptic number.

It is an amenable number.

6680745 is a deficient number, since it is larger than the sum of its proper divisors (6382935).

6680745 is a wasteful number, since it uses less digits than its factorization.

6680745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 6680745 is about 2584.7137172229. The cubic root of 6680745 is about 188.3395948180.

The spelling of 6680745 in words is "six million, six hundred eighty thousand, seven hundred forty-five".