728834 has 4 divisors (see below), whose sum is σ = 1093254. Its totient is φ = 364416.

The previous prime is 728831. The next prime is 728837. The reversal of 728834 is 438827.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (728831) and next prime (728837).

It can be written as a sum of positive squares in only one way, i.e., 727609 + 1225 = 853^2 + 35^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 728834.

It is not an unprimeable number, because it can be changed into a prime (728831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 182207 + ... + 182210.

2⁷²⁸⁸³⁴ is an apocalyptic number.

728834 is a deficient number, since it is larger than the sum of its proper divisors (364420).

728834 is a wasteful number, since it uses less digits than its factorization.

728834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364419.

The product of its digits is 10752, while the sum is 32.

The square root of 728834 is about 853.7177519532. The cubic root of 728834 is about 89.9931682057.

The spelling of 728834 in words is "seven hundred twenty-eight thousand, eight hundred thirty-four".