730726 has 8 divisors (see below), whose sum is σ = 1100880. Its totient is φ = 363768.

The previous prime is 730679. The next prime is 730727. The reversal of 730726 is 627037.

730726 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 730726.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (730727) 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, 106 + ... + 1213.

It is an arithmetic number, because the mean of its divisors is an integer number (137610).

2⁷³⁰⁷²⁶ is an apocalyptic number.

730726 is a deficient number, since it is larger than the sum of its proper divisors (370154).

730726 is a wasteful number, since it uses less digits than its factorization.

730726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1598.

The product of its (nonzero) digits is 1764, while the sum is 25.

The square root of 730726 is about 854.8251283157. The cubic root of 730726 is about 90.0709728236.

The spelling of 730726 in words is "seven hundred thirty thousand, seven hundred twenty-six".