726870 has 16 divisors (see below), whose sum is σ = 1744560. Its totient is φ = 193824.

The previous prime is 726853. The next prime is 726893. The reversal of 726870 is 78627.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 24229 = 726870 / (7 + 2 + 6 + 8 + 7 + 0).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726870.

It is an unprimeable number.

726870 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12085 + ... + 12144.

It is an arithmetic number, because the mean of its divisors is an integer number (109035).

2⁷²⁶⁸⁷⁰ is an apocalyptic number.

726870 is an abundant number, since it is smaller than the sum of its proper divisors (1017690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726870 is a wasteful number, since it uses less digits than its factorization.

726870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24239.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 726870 is about 852.5667129322. The cubic root of 726870 is about 89.9122601704.

It can be divided in two parts, 726 and 870, that added together give a triangular number (1596 = T₅₆).

The spelling of 726870 in words is "seven hundred twenty-six thousand, eight hundred seventy".