726725812 has 6 divisors (see below), whose sum is σ = 1271770178. Its totient is φ = 363362904.

The previous prime is 726725803. The next prime is 726725821. The reversal of 726725812 is 218527627.

It is a happy number.

726725812 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (726725803) and next prime (726725821).

It can be written as a sum of positive squares in only one way, i.e., 721137316 + 5588496 = 26854^2 + 2364^2 .

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, 90840723 + ... + 90840730.

Almost surely, 2^726725812 is an apocalyptic number.

It is an amenable number.

726725812 is a deficient number, since it is larger than the sum of its proper divisors (545044366).

726725812 is a wasteful number, since it uses less digits than its factorization.

726725812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181681457 (or 181681455 counting only the distinct ones).

The product of its digits is 94080, while the sum is 40.

The square root of 726725812 is about 26957.8525109104. The cubic root of 726725812 is about 899.0631452844.

The spelling of 726725812 in words is "seven hundred twenty-six million, seven hundred twenty-five thousand, eight hundred twelve".