726886381 has 16 divisors (see below), whose sum is σ = 791683200. Its totient is φ = 663399360.

The previous prime is 726886379. The next prime is 726886393. The reversal of 726886381 is 183688627.

It is not a de Polignac number, because 726886381 - 2¹ = 726886379 is a prime.

It is a super-2 number, since 2×726886381² = 1056727621766554322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726886301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 593736 + ... + 594958.

It is an arithmetic number, because the mean of its divisors is an integer number (49480200).

Almost surely, 2^726886381 is an apocalyptic number.

It is an amenable number.

726886381 is a deficient number, since it is larger than the sum of its proper divisors (64796819).

726886381 is a wasteful number, since it uses less digits than its factorization.

726886381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1716.

The product of its digits is 774144, while the sum is 49.

The square root of 726886381 is about 26960.8304953686. The cubic root of 726886381 is about 899.1293559684.

The spelling of 726886381 in words is "seven hundred twenty-six million, eight hundred eighty-six thousand, three hundred eighty-one".