680622606 has 24 divisors (see below), whose sum is σ = 1482330720. Its totient is φ = 225697536.

The previous prime is 680622599. The next prime is 680622611. The reversal of 680622606 is 606226086.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94486 + ... + 101433.

It is an arithmetic number, because the mean of its divisors is an integer number (61763780).

Almost surely, 2^680622606 is an apocalyptic number.

680622606 is an abundant number, since it is smaller than the sum of its proper divisors (801708114).

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

680622606 is a wasteful number, since it uses less digits than its factorization.

680622606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196120 (or 196117 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 680622606 is about 26088.7448145747. The cubic root of 680622606 is about 879.6342341845.

It can be divided in two parts, 680 and 622606, that added together give a triangular number (623286 = T₁₁₁₆).

The spelling of 680622606 in words is "six hundred eighty million, six hundred twenty-two thousand, six hundred six".