428858 has 8 divisors (see below), whose sum is σ = 671328. Its totient is φ = 205084.

The previous prime is 428851. The next prime is 428863. The reversal of 428858 is 858824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 428858.

It is not an unprimeable number, because it can be changed into a prime (428851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4616 + ... + 4707.

It is an arithmetic number, because the mean of its divisors is an integer number (83916).

2⁴²⁸⁸⁵⁸ is an apocalyptic number.

428858 is a deficient number, since it is larger than the sum of its proper divisors (242470).

428858 is a wasteful number, since it uses less digits than its factorization.

428858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348.

The product of its digits is 20480, while the sum is 35.

The square root of 428858 is about 654.8725066759. The cubic root of 428858 is about 75.4115450195.

The spelling of 428858 in words is "four hundred twenty-eight thousand, eight hundred fifty-eight".