428579 has 2 divisors, whose sum is σ = 428580. Its totient is φ = 428578.

The previous prime is 428569. The next prime is 428629. The reversal of 428579 is 975824.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428579 - 2⁴ = 428563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (428509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214289 + 214290.

It is an arithmetic number, because the mean of its divisors is an integer number (214290).

2⁴²⁸⁵⁷⁹ is an apocalyptic number.

428579 is a deficient number, since it is larger than the sum of its proper divisors (1).

428579 is an equidigital number, since it uses as much as digits as its factorization.

428579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 35.

The square root of 428579 is about 654.6594534565. The cubic root of 428579 is about 75.3951881016.

The spelling of 428579 in words is "four hundred twenty-eight thousand, five hundred seventy-nine".