428716 has 12 divisors (see below), whose sum is σ = 789880. Its totient is φ = 203040.

The previous prime is 428693. The next prime is 428731. The reversal of 428716 is 617824.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2745 + ... + 2896.

2⁴²⁸⁷¹⁶ is an apocalyptic number.

It is an amenable number.

428716 is a deficient number, since it is larger than the sum of its proper divisors (361164).

428716 is a wasteful number, since it uses less digits than its factorization.

428716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5664 (or 5662 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 428716 is about 654.7640796501. The cubic root of 428716 is about 75.4032208799.

The spelling of 428716 in words is "four hundred twenty-eight thousand, seven hundred sixteen".