680410663 has 4 divisors (see below), whose sum is σ = 680517648. Its totient is φ = 680303680.

The previous prime is 680410657. The next prime is 680410667. The reversal of 680410663 is 366014086.

680410663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 680410663 - 2⁵ = 680410631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680410667) 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, 43306 + ... + 56887.

It is an arithmetic number, because the mean of its divisors is an integer number (170129412).

Almost surely, 2^680410663 is an apocalyptic number.

680410663 is a deficient number, since it is larger than the sum of its proper divisors (106985).

680410663 is a wasteful number, since it uses less digits than its factorization.

680410663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106984.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 680410663 is about 26084.6825359252. The cubic root of 680410663 is about 879.5429199126.

The spelling of 680410663 in words is "six hundred eighty million, four hundred ten thousand, six hundred sixty-three".