726415317 has 8 divisors (see below), whose sum is σ = 1076170880. Its totient is φ = 484276860.

The previous prime is 726415309. The next prime is 726415357. The reversal of 726415317 is 713514627.

It is a happy number.

726415317 is a `hidden beast` number, since 7 + 2 + 641 + 5 + 3 + 1 + 7 = 666.

It is not a de Polignac number, because 726415317 - 2³ = 726415309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726415357) 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 7 ways as a sum of consecutive naturals, for example, 13452109 + ... + 13452162.

It is an arithmetic number, because the mean of its divisors is an integer number (134521360).

Almost surely, 2^726415317 is an apocalyptic number.

It is an amenable number.

726415317 is a deficient number, since it is larger than the sum of its proper divisors (349755563).

726415317 is a wasteful number, since it uses less digits than its factorization.

726415317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26904280 (or 26904274 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 726415317 is about 26952.0929985038. The cubic root of 726415317 is about 898.9350848923.

The spelling of 726415317 in words is "seven hundred twenty-six million, four hundred fifteen thousand, three hundred seventeen".