8780680 has 16 divisors (see below), whose sum is σ = 19756620. Its totient is φ = 3512256.

The previous prime is 8780677. The next prime is 8780689. The reversal of 8780680 is 860878.

8780680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 8655364 + 125316 = 2942^2 + 354^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8780689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109719 + ... + 109798.

Almost surely, 2^8780680 is an apocalyptic number.

It is an amenable number.

8780680 is an abundant number, since it is smaller than the sum of its proper divisors (10975940).

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

8780680 is a wasteful number, since it uses less digits than its factorization.

8780680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219528 (or 219524 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 8780680 is about 2963.2212202264. The cubic root of 8780680 is about 206.3048241156.

The spelling of 8780680 in words is "eight million, seven hundred eighty thousand, six hundred eighty".