828723 has 32 divisors (see below), whose sum is σ = 1392640. Its totient is φ = 427680.

The previous prime is 828721. The next prime is 828731. The reversal of 828723 is 327828.

828723 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 828723 - 2¹ = 828721 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (828721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12336 + ... + 12402.

It is an arithmetic number, because the mean of its divisors is an integer number (43520).

2⁸²⁸⁷²³ is an apocalyptic number.

828723 is a deficient number, since it is larger than the sum of its proper divisors (563917).

828723 is a wasteful number, since it uses less digits than its factorization.

828723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127.

The product of its digits is 5376, while the sum is 30.

The square root of 828723 is about 910.3422433349. The cubic root of 828723 is about 93.9297422798.

It can be divided in two parts, 828 and 723, that added together give a palindrome (1551).

The spelling of 828723 in words is "eight hundred twenty-eight thousand, seven hundred twenty-three".