428835 has 32 divisors (see below), whose sum is σ = 787968. Its totient is φ = 197120.

The previous prime is 428833. The next prime is 428843. The reversal of 428835 is 538824.

It is not a de Polignac number, because 428835 - 2¹ = 428833 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3739 + ... + 3851.

It is an arithmetic number, because the mean of its divisors is an integer number (24624).

2⁴²⁸⁸³⁵ is an apocalyptic number.

428835 is a deficient number, since it is larger than the sum of its proper divisors (359133).

428835 is a wasteful number, since it uses less digits than its factorization.

428835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155.

The product of its digits is 7680, while the sum is 30.

The square root of 428835 is about 654.8549457704. The cubic root of 428835 is about 75.4101968681.

The spelling of 428835 in words is "four hundred twenty-eight thousand, eight hundred thirty-five".