428884173 has 8 divisors (see below), whose sum is σ = 635384000. Its totient is φ = 285922764.

The previous prime is 428884129. The next prime is 428884189. The reversal of 428884173 is 371488824.

It is not a de Polignac number, because 428884173 - 2¹⁰ = 428883149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428884073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7942273 + ... + 7942326.

It is an arithmetic number, because the mean of its divisors is an integer number (79423000).

Almost surely, 2^428884173 is an apocalyptic number.

It is an amenable number.

428884173 is a deficient number, since it is larger than the sum of its proper divisors (206499827).

428884173 is a wasteful number, since it uses less digits than its factorization.

428884173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15884608 (or 15884602 counting only the distinct ones).

The product of its digits is 344064, while the sum is 45.

The square root of 428884173 is about 20709.5188983231. The cubic root of 428884173 is about 754.1307909853.

The spelling of 428884173 in words is "four hundred twenty-eight million, eight hundred eighty-four thousand, one hundred seventy-three".