728607 has 8 divisors (see below), whose sum is σ = 1059840. Its totient is φ = 441560.

The previous prime is 728579. The next prime is 728627. The reversal of 728607 is 706827.

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

It is a cyclic number.

It is not a de Polignac number, because 728607 - 2¹¹ = 726559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11007 + ... + 11072.

It is an arithmetic number, because the mean of its divisors is an integer number (132480).

2⁷²⁸⁶⁰⁷ is an apocalyptic number.

728607 is a deficient number, since it is larger than the sum of its proper divisors (331233).

728607 is a wasteful number, since it uses less digits than its factorization.

728607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22093.

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

The square root of 728607 is about 853.5847936790. The cubic root of 728607 is about 89.9838242534.

The spelling of 728607 in words is "seven hundred twenty-eight thousand, six hundred seven".