428163 has 12 divisors (see below), whose sum is σ = 594888. Its totient is φ = 273760.

The previous prime is 428161. The next prime is 428167. The reversal of 428163 is 361824.

It is a happy number.

It is not a de Polignac number, because 428163 - 2¹ = 428161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (428161) 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 11 ways as a sum of consecutive naturals, for example, 7228 + ... + 7286.

It is an arithmetic number, because the mean of its divisors is an integer number (49574).

2⁴²⁸¹⁶³ is an apocalyptic number.

428163 is a deficient number, since it is larger than the sum of its proper divisors (166725).

428163 is an equidigital number, since it uses as much as digits as its factorization.

428163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162 (or 103 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 428163 is about 654.3416538782. The cubic root of 428163 is about 75.3707861036.

Adding to 428163 its reverse (361824), we get a palindrome (789987).

The spelling of 428163 in words is "four hundred twenty-eight thousand, one hundred sixty-three".