726564 has 24 divisors (see below), whose sum is σ = 1709568. Its totient is φ = 240160.

The previous prime is 726559. The next prime is 726589. The reversal of 726564 is 465627.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726564.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2134 + ... + 2450.

It is an arithmetic number, because the mean of its divisors is an integer number (71232).

2⁷²⁶⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

726564 is an abundant number, since it is smaller than the sum of its proper divisors (983004).

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

726564 is a wasteful number, since it uses less digits than its factorization.

726564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515 (or 513 counting only the distinct ones).

The product of its digits is 10080, while the sum is 30.

The square root of 726564 is about 852.3872359439. The cubic root of 726564 is about 89.8996412182.

The spelling of 726564 in words is "seven hundred twenty-six thousand, five hundred sixty-four".