726791860 has 12 divisors (see below), whose sum is σ = 1526262948. Its totient is φ = 290716736.

The previous prime is 726791839. The next prime is 726791867. The reversal of 726791860 is 68197627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 576288036 + 150503824 = 24006^2 + 12268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 726791860.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726791867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18169777 + ... + 18169816.

It is an arithmetic number, because the mean of its divisors is an integer number (127188579).

Almost surely, 2^726791860 is an apocalyptic number.

It is an amenable number.

726791860 is an abundant number, since it is smaller than the sum of its proper divisors (799471088).

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

726791860 is a wasteful number, since it uses less digits than its factorization.

726791860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36339602 (or 36339600 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 726791860 is about 26959.0775064727. The cubic root of 726791860 is about 899.0903813812.

The spelling of 726791860 in words is "seven hundred twenty-six million, seven hundred ninety-one thousand, eight hundred sixty".