726136 has 16 divisors (see below), whose sum is σ = 1373400. Its totient is φ = 359904.

The previous prime is 726109. The next prime is 726137. The reversal of 726136 is 631627.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 726136.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786 + ... + 1438.

2⁷²⁶¹³⁶ is an apocalyptic number.

It is an amenable number.

726136 is a deficient number, since it is larger than the sum of its proper divisors (647264).

726136 is a wasteful number, since it uses less digits than its factorization.

726136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798 (or 794 counting only the distinct ones).

The product of its digits is 1512, while the sum is 25.

The square root of 726136 is about 852.1361393580. The cubic root of 726136 is about 89.8819852355.

The spelling of 726136 in words is "seven hundred twenty-six thousand, one hundred thirty-six".