728061 has 16 divisors (see below), whose sum is σ = 1045440. Its totient is φ = 449280.

The previous prime is 728047. The next prime is 728069. The reversal of 728061 is 160827.

It is not a de Polignac number, because 728061 - 2⁶ = 727997 is a prime.

It is a Curzon number.

728061 is a lucky number.

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 728061.

It is not an unprimeable number, because it can be changed into a prime (728069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2901 + ... + 3141.

It is an arithmetic number, because the mean of its divisors is an integer number (65340).

2⁷²⁸⁰⁶¹ is an apocalyptic number.

It is an amenable number.

728061 is a deficient number, since it is larger than the sum of its proper divisors (317379).

728061 is a wasteful number, since it uses less digits than its factorization.

728061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316.

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

The square root of 728061 is about 853.2649061106. The cubic root of 728061 is about 89.9613414217.

Adding to 728061 its reverse (160827), we get a palindrome (888888).

The spelling of 728061 in words is "seven hundred twenty-eight thousand, sixty-one".