728035 has 32 divisors (see below), whose sum is σ = 1142784. Its totient is φ = 432000.

The previous prime is 728027. The next prime is 728047. The reversal of 728035 is 530827.

It is not a de Polignac number, because 728035 - 2³ = 728027 is a prime.

It is a super-2 number, since 2×728035² = 1060069922450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11905 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (35712).

2⁷²⁸⁰³⁵ is an apocalyptic number.

728035 is the 427-th decagonal number.

728035 is a deficient number, since it is larger than the sum of its proper divisors (414749).

728035 is a wasteful number, since it uses less digits than its factorization.

728035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 728035 is about 853.2496703779. The cubic root of 728035 is about 89.9602705303.

The spelling of 728035 in words is "seven hundred twenty-eight thousand, thirty-five".