428758 has 8 divisors (see below), whose sum is σ = 701640. Its totient is φ = 194880.

The previous prime is 428741. The next prime is 428759. The reversal of 428758 is 857824.

428758 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428759) 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, 9723 + ... + 9766.

It is an arithmetic number, because the mean of its divisors is an integer number (87705).

2⁴²⁸⁷⁵⁸ is an apocalyptic number.

428758 is a deficient number, since it is larger than the sum of its proper divisors (272882).

428758 is a wasteful number, since it uses less digits than its factorization.

428758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19502.

The product of its digits is 17920, while the sum is 34.

The square root of 428758 is about 654.7961514853. The cubic root of 428758 is about 75.4056831408.

It can be divided in two parts, 42875 and 8, that multiplied together give a cube (343000 = 70³).

The spelling of 428758 in words is "four hundred twenty-eight thousand, seven hundred fifty-eight".