428833 has 2 divisors, whose sum is σ = 428834. Its totient is φ = 428832.

The previous prime is 428809. The next prime is 428843. The reversal of 428833 is 338824.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 374544 + 54289 = 612^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 428833 - 2⁵ = 428801 is a prime.

It is not a weakly prime, because it can be changed into another prime (428843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214416 + 214417.

It is an arithmetic number, because the mean of its divisors is an integer number (214417).

2⁴²⁸⁸³³ is an apocalyptic number.

It is an amenable number.

428833 is a deficient number, since it is larger than the sum of its proper divisors (1).

428833 is an equidigital number, since it uses as much as digits as its factorization.

428833 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 28.

The square root of 428833 is about 654.8534187129. The cubic root of 428833 is about 75.4100796352.

Subtracting from 428833 its reverse (338824), we obtain a palindrome (90009).

The spelling of 428833 in words is "four hundred twenty-eight thousand, eight hundred thirty-three".