726348681 has 16 divisors (see below), whose sum is σ = 1139371200. Its totient is φ = 455747904.

The previous prime is 726348659. The next prime is 726348683. The reversal of 726348681 is 186843627.

726348681 is a `hidden beast` number, since 7 + 2 + 634 + 8 + 6 + 8 + 1 = 666.

726348681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 726348681 - 2¹⁴ = 726332297 is a prime.

It is a super-2 number, since 2×726348681² = 1055164812780879522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (726348683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 790771 + ... + 791688.

It is an arithmetic number, because the mean of its divisors is an integer number (71210700).

Almost surely, 2^726348681 is an apocalyptic number.

It is an amenable number.

726348681 is a deficient number, since it is larger than the sum of its proper divisors (413022519).

726348681 is a wasteful number, since it uses less digits than its factorization.

726348681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1582485 (or 1582479 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 726348681 is about 26950.8567767335. The cubic root of 726348681 is about 898.9075968201.

The spelling of 726348681 in words is "seven hundred twenty-six million, three hundred forty-eight thousand, six hundred eighty-one".