428339 has 2 divisors, whose sum is σ = 428340. Its totient is φ = 428338.

The previous prime is 428303. The next prime is 428353. The reversal of 428339 is 933824.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 428339 - 2⁸ = 428083 is a prime.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (428369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214169 + 214170.

It is an arithmetic number, because the mean of its divisors is an integer number (214170).

2⁴²⁸³³⁹ is an apocalyptic number.

428339 is a deficient number, since it is larger than the sum of its proper divisors (1).

428339 is an equidigital number, since it uses as much as digits as its factorization.

428339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 428339 is about 654.4761263790. The cubic root of 428339 is about 75.3811119539.

It can be divided in two parts, 428 and 339, that added together give a palindrome (767).

The spelling of 428339 in words is "four hundred twenty-eight thousand, three hundred thirty-nine".