726604713 has 6 divisors (see below), whose sum is σ = 1049540154. Its totient is φ = 484403136.

The previous prime is 726604709. The next prime is 726604717. The reversal of 726604713 is 317406627.

It is an interprime number because it is at equal distance from previous prime (726604709) and next prime (726604717).

It can be written as a sum of positive squares in only one way, i.e., 645820569 + 80784144 = 25413^2 + 8988^2 .

It is not a de Polignac number, because 726604713 - 2² = 726604709 is a prime.

It is not an unprimeable number, because it can be changed into a prime (726604717) 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 5 ways as a sum of consecutive naturals, for example, 40366920 + ... + 40366937.

It is an arithmetic number, because the mean of its divisors is an integer number (174923359).

Almost surely, 2^726604713 is an apocalyptic number.

It is an amenable number.

726604713 is a deficient number, since it is larger than the sum of its proper divisors (322935441).

726604713 is a wasteful number, since it uses less digits than its factorization.

726604713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80733863 (or 80733860 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 726604713 is about 26955.6063370869. The cubic root of 726604713 is about 899.0132036172.

The spelling of 726604713 in words is "seven hundred twenty-six million, six hundred four thousand, seven hundred thirteen".