428673 has 16 divisors (see below), whose sum is σ = 662400. Its totient is φ = 241536.

The previous prime is 428671. The next prime is 428677. The reversal of 428673 is 376824.

It is not a de Polignac number, because 428673 - 2¹ = 428671 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 428673.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428671) 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 15 ways as a sum of consecutive naturals, for example, 2803 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (41400).

2⁴²⁸⁶⁷³ is an apocalyptic number.

It is an amenable number.

428673 is a deficient number, since it is larger than the sum of its proper divisors (233727).

428673 is a wasteful number, since it uses less digits than its factorization.

428673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296.

The product of its digits is 8064, while the sum is 30.

The square root of 428673 is about 654.7312425721. The cubic root of 428673 is about 75.4006998272.

The spelling of 428673 in words is "four hundred twenty-eight thousand, six hundred seventy-three".