728886 has 32 divisors (see below), whose sum is σ = 1555200. Its totient is φ = 227360.

The previous prime is 728881. The next prime is 728891. The reversal of 728886 is 688827.

It is an interprime number because it is at equal distance from previous prime (728881) and next prime (728891).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728881) by changing a digit.

728886 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10231 + ... + 10301.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2⁷²⁸⁸⁸⁶ is an apocalyptic number.

728886 is an abundant number, since it is smaller than the sum of its proper divisors (826314).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

728886 is a wasteful number, since it uses less digits than its factorization.

728886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164.

The product of its digits is 43008, while the sum is 39.

The square root of 728886 is about 853.7482064403. The cubic root of 728886 is about 89.9953083974.

It can be divided in two parts, 7 and 28886, that multiplied together give a palindrome (202202).

The spelling of 728886 in words is "seven hundred twenty-eight thousand, eight hundred eighty-six".