728235 has 12 divisors (see below), whose sum is σ = 1262352. Its totient is φ = 388368.

The previous prime is 728209. The next prime is 728261. The reversal of 728235 is 532827.

It is an interprime number because it is at equal distance from previous prime (728209) and next prime (728261).

It is not a de Polignac number, because 728235 - 2¹⁰ = 727211 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 728199 and 728208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8047 + ... + 8136.

It is an arithmetic number, because the mean of its divisors is an integer number (105196).

2⁷²⁸²³⁵ is an apocalyptic number.

728235 is a deficient number, since it is larger than the sum of its proper divisors (534117).

728235 is a wasteful number, since it uses less digits than its factorization.

728235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16194 (or 16191 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 728235 is about 853.3668613205. The cubic root of 728235 is about 89.9685075001.

The spelling of 728235 in words is "seven hundred twenty-eight thousand, two hundred thirty-five".