728601 has 4 divisors (see below), whose sum is σ = 971472. Its totient is φ = 485732.

The previous prime is 728579. The next prime is 728627. The reversal of 728601 is 106827.

728601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 728601 - 2⁶ = 728537 is a prime.

It is a D-number.

728601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (728681) 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, 121431 + ... + 121436.

It is an arithmetic number, because the mean of its divisors is an integer number (242868).

2⁷²⁸⁶⁰¹ is an apocalyptic number.

It is an amenable number.

728601 is a deficient number, since it is larger than the sum of its proper divisors (242871).

728601 is a wasteful number, since it uses less digits than its factorization.

728601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242870.

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 728601 is about 853.5812790824. The cubic root of 728601 is about 89.9835772504.

The spelling of 728601 in words is "seven hundred twenty-eight thousand, six hundred one".