726134785 has 8 divisors (see below), whose sum is σ = 872511336. Its totient is φ = 580141440.

The previous prime is 726134779. The next prime is 726134791. The reversal of 726134785 is 587431627.

It is an interprime number because it is at equal distance from previous prime (726134779) and next prime (726134791).

It can be written as a sum of positive squares in 4 ways, for example, as 44715969 + 681418816 = 6687^2 + 26104^2 .

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

It is not a de Polignac number, because 726134785 - 2⁹ = 726134273 is a prime.

It is a Duffinian number.

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 7 ways as a sum of consecutive naturals, for example, 91614 + ... + 99223.

It is an arithmetic number, because the mean of its divisors is an integer number (109063917).

Almost surely, 2^726134785 is an apocalyptic number.

It is an amenable number.

726134785 is a deficient number, since it is larger than the sum of its proper divisors (146376551).

726134785 is a wasteful number, since it uses less digits than its factorization.

726134785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191603.

The product of its digits is 282240, while the sum is 43.

The square root of 726134785 is about 26946.8882248025. Note that the first 3 decimals coincide. The cubic root of 726134785 is about 898.8193510409.

The spelling of 726134785 in words is "seven hundred twenty-six million, one hundred thirty-four thousand, seven hundred eighty-five".