828489 has 8 divisors (see below), whose sum is σ = 1112320. Its totient is φ = 548496.

The previous prime is 828449. The next prime is 828517. The reversal of 828489 is 984828.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 828489 - 2⁷ = 828361 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (828409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (139040).

2⁸²⁸⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

828489 is a deficient number, since it is larger than the sum of its proper divisors (283831).

828489 is a wasteful number, since it uses less digits than its factorization.

828489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919.

The product of its digits is 36864, while the sum is 39.

The square root of 828489 is about 910.2137111690. The cubic root of 828489 is about 93.9209007132.

The spelling of 828489 in words is "eight hundred twenty-eight thousand, four hundred eighty-nine".