428806 has 16 divisors (see below), whose sum is σ = 744480. Its totient is φ = 181440.

The previous prime is 428801. The next prime is 428807. The reversal of 428806 is 608824.

428806 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428801) 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, 1386 + ... + 1666.

It is an arithmetic number, because the mean of its divisors is an integer number (46530).

2⁴²⁸⁸⁰⁶ is an apocalyptic number.

428806 is a deficient number, since it is larger than the sum of its proper divisors (315674).

428806 is a wasteful number, since it uses less digits than its factorization.

428806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 428806 is about 654.8328030879. The cubic root of 428806 is about 75.4084969563.

The spelling of 428806 in words is "four hundred twenty-eight thousand, eight hundred six".