828399 has 16 divisors (see below), whose sum is σ = 1298304. Its totient is φ = 463200.

The previous prime is 828397. The next prime is 828407. The reversal of 828399 is 993828.

It is not a de Polignac number, because 828399 - 2¹ = 828397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537 + ... + 1394.

It is an arithmetic number, because the mean of its divisors is an integer number (81144).

2⁸²⁸³⁹⁹ is an apocalyptic number.

828399 is a deficient number, since it is larger than the sum of its proper divisors (469905).

828399 is a wasteful number, since it uses less digits than its factorization.

828399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958.

The product of its digits is 31104, while the sum is 39.

The square root of 828399 is about 910.1642708874. The cubic root of 828399 is about 93.9174996674.

The spelling of 828399 in words is "eight hundred twenty-eight thousand, three hundred ninety-nine".