726166916 has 12 divisors (see below), whose sum is σ = 1288200732. Its totient is φ = 358109568.

The previous prime is 726166901. The next prime is 726166937. The reversal of 726166916 is 619661627.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 600054016 + 126112900 = 24496^2 + 11230^2 .

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 3 ways as a sum of consecutive naturals, for example, 1243145 + ... + 1243728.

It is an arithmetic number, because the mean of its divisors is an integer number (107350061).

Almost surely, 2^726166916 is an apocalyptic number.

It is an amenable number.

726166916 is a deficient number, since it is larger than the sum of its proper divisors (562033816).

726166916 is a wasteful number, since it uses less digits than its factorization.

726166916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486950 (or 2486948 counting only the distinct ones).

The product of its digits is 163296, while the sum is 44.

The square root of 726166916 is about 26947.4844094954. The cubic root of 726166916 is about 898.8326082393.

The spelling of 726166916 in words is "seven hundred twenty-six million, one hundred sixty-six thousand, nine hundred sixteen".