428586 has 16 divisors (see below), whose sum is σ = 871968. Its totient is φ = 140400.

The previous prime is 428579. The next prime is 428629. The reversal of 428586 is 685824.

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, 220 + ... + 951.

It is an arithmetic number, because the mean of its divisors is an integer number (54498).

2⁴²⁸⁵⁸⁶ is an apocalyptic number.

428586 is an abundant number, since it is smaller than the sum of its proper divisors (443382).

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

428586 is a wasteful number, since it uses less digits than its factorization.

428586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1237.

The product of its digits is 15360, while the sum is 33.

The square root of 428586 is about 654.6647997258. The cubic root of 428586 is about 75.3955985770.

It can be divided in two parts, 4285 and 86, that added together give a triangular number (4371 = T₉₃).

The spelling of 428586 in words is "four hundred twenty-eight thousand, five hundred eighty-six".