826428 has 24 divisors (see below), whose sum is σ = 1961680. Its totient is φ = 270720.

The previous prime is 826411. The next prime is 826453. The reversal of 826428 is 824628.

It is a happy number.

826428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 826395 and 826404.

It is a congruent number.

It is an unprimeable number.

826428 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 7 ways as a sum of consecutive naturals, for example, 168 + ... + 1296.

2⁸²⁶⁴²⁸ is an apocalyptic number.

It is an amenable number.

826428 is an abundant number, since it is smaller than the sum of its proper divisors (1135252).

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

826428 is a wasteful number, since it uses less digits than its factorization.

826428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1195 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 826428 is about 909.0808544899. The cubic root of 826428 is about 93.8429549141.

The spelling of 826428 in words is "eight hundred twenty-six thousand, four hundred twenty-eight".