726880856 has 64 divisors (see below), whose sum is σ = 1511109600. Its totient is φ = 325721088.

The previous prime is 726880813. The next prime is 726880859. The reversal of 726880856 is 658088627.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726880859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507950 + ... + 509378.

Almost surely, 2^726880856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 726880856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755554800).

726880856 is an abundant number, since it is smaller than the sum of its proper divisors (784228744).

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

726880856 is a wasteful number, since it uses less digits than its factorization.

726880856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588 (or 1584 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The square root of 726880856 is about 26960.7280317131. The cubic root of 726880856 is about 899.1270778947.

The spelling of 726880856 in words is "seven hundred twenty-six million, eight hundred eighty thousand, eight hundred fifty-six".