726376609 has 8 divisors (see below), whose sum is σ = 836118080. Its totient is φ = 618128496.

The previous prime is 726376589. The next prime is 726376633. The reversal of 726376609 is 906673627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726376609 - 2⁵ = 726376577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (726376649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 372294 + ... + 374239.

It is an arithmetic number, because the mean of its divisors is an integer number (104514760).

Almost surely, 2^726376609 is an apocalyptic number.

It is an amenable number.

726376609 is a deficient number, since it is larger than the sum of its proper divisors (109741471).

726376609 is a wasteful number, since it uses less digits than its factorization.

726376609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746679.

The product of its (nonzero) digits is 571536, while the sum is 46.

The square root of 726376609 is about 26951.3748999935. The cubic root of 726376609 is about 898.9191176274.

The spelling of 726376609 in words is "seven hundred twenty-six million, three hundred seventy-six thousand, six hundred nine".