428886 has 12 divisors (see below), whose sum is σ = 929292. Its totient is φ = 142956.

The previous prime is 428873. The next prime is 428899. The reversal of 428886 is 688824.

It is an interprime number because it is at equal distance from previous prime (428873) and next prime (428899).

It is a self number, because there is not a number n which added to its sum of digits gives 428886.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11896 + ... + 11931.

It is an arithmetic number, because the mean of its divisors is an integer number (77441).

2⁴²⁸⁸⁸⁶ is an apocalyptic number.

428886 is an abundant number, since it is smaller than the sum of its proper divisors (500406).

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

428886 is a wasteful number, since it uses less digits than its factorization.

428886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23835 (or 23832 counting only the distinct ones).

The product of its digits is 24576, while the sum is 36.

The square root of 428886 is about 654.8938845340. The cubic root of 428886 is about 75.4131861822.

The spelling of 428886 in words is "four hundred twenty-eight thousand, eight hundred eighty-six".