726806680 has 16 divisors (see below), whose sum is σ = 1635315120. Its totient is φ = 290722656.

The previous prime is 726806669. The next prime is 726806701. The reversal of 726806680 is 86608627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9085044 + ... + 9085123.

It is an arithmetic number, because the mean of its divisors is an integer number (102207195).

Almost surely, 2^726806680 is an apocalyptic number.

It is an amenable number.

726806680 is an abundant number, since it is smaller than the sum of its proper divisors (908508440).

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

726806680 is a wasteful number, since it uses less digits than its factorization.

726806680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18170178 (or 18170174 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 726806680 is about 26959.3523661085. The cubic root of 726806680 is about 899.0964924517.

The spelling of 726806680 in words is "seven hundred twenty-six million, eight hundred six thousand, six hundred eighty".