680740822 has 4 divisors (see below), whose sum is σ = 1021111236. Its totient is φ = 340370410.

The previous prime is 680740817. The next prime is 680740831. The reversal of 680740822 is 228047086.

680740822 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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170185204 + ... + 170185207.

It is an arithmetic number, because the mean of its divisors is an integer number (255277809).

Almost surely, 2^680740822 is an apocalyptic number.

680740822 is a deficient number, since it is larger than the sum of its proper divisors (340370414).

680740822 is a wasteful number, since it uses less digits than its factorization.

680740822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340370413.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 680740822 is about 26091.0103675576. The cubic root of 680740822 is about 879.6851585489.

The spelling of 680740822 in words is "six hundred eighty million, seven hundred forty thousand, eight hundred twenty-two".