828420 has 24 divisors (see below), whose sum is σ = 2319744. Its totient is φ = 220896.

The previous prime is 828409. The next prime is 828431. The reversal of 828420 is 24828.

It is an interprime number because it is at equal distance from previous prime (828409) and next prime (828431).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6844 + ... + 6963.

It is an arithmetic number, because the mean of its divisors is an integer number (96656).

2⁸²⁸⁴²⁰ is an apocalyptic number.

It is an amenable number.

828420 is an abundant number, since it is smaller than the sum of its proper divisors (1491324).

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

828420 is a wasteful number, since it uses less digits than its factorization.

828420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13819 (or 13817 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 828420 is about 910.1758071933. The cubic root of 828420 is about 93.9182932668.

The spelling of 828420 in words is "eight hundred twenty-eight thousand, four hundred twenty".