428851 has 2 divisors, whose sum is σ = 428852. Its totient is φ = 428850.

The previous prime is 428843. The next prime is 428863. The reversal of 428851 is 158824.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 428851 - 2³ = 428843 is a prime.

It is not a weakly prime, because it can be changed into another prime (428801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 214425 + 214426.

It is an arithmetic number, because the mean of its divisors is an integer number (214426).

2⁴²⁸⁸⁵¹ is an apocalyptic number.

428851 is a deficient number, since it is larger than the sum of its proper divisors (1).

428851 is an equidigital number, since it uses as much as digits as its factorization.

428851 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2560, while the sum is 28.

The square root of 428851 is about 654.8671621024. The cubic root of 428851 is about 75.4111347176.

The spelling of 428851 in words is "four hundred twenty-eight thousand, eight hundred fifty-one".