428067 has 6 divisors (see below), whose sum is σ = 618332. Its totient is φ = 285372.

The previous prime is 428047. The next prime is 428083. The reversal of 428067 is 760824.

It is not a de Polignac number, because 428067 - 2⁶ = 428003 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 428067.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428067.

It is not an unprimeable number, because it can be changed into a prime (428027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23773 + ... + 23790.

2⁴²⁸⁰⁶⁷ is an apocalyptic number.

428067 is a deficient number, since it is larger than the sum of its proper divisors (190265).

428067 is a wasteful number, since it uses less digits than its factorization.

428067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47569 (or 47566 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 428067 is about 654.2682935922. The cubic root of 428067 is about 75.3651526289.

The spelling of 428067 in words is "four hundred twenty-eight thousand, sixty-seven".