428734 has 8 divisors (see below), whose sum is σ = 656928. Its totient is φ = 209760.

The previous prime is 428731. The next prime is 428741. The reversal of 428734 is 437824.

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

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2187 + ... + 2374.

It is an arithmetic number, because the mean of its divisors is an integer number (82116).

2⁴²⁸⁷³⁴ is an apocalyptic number.

428734 is a deficient number, since it is larger than the sum of its proper divisors (228194).

428734 is a wasteful number, since it uses less digits than its factorization.

428734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4610.

The product of its digits is 5376, while the sum is 28.

The square root of 428734 is about 654.7778249147. Note that the first 3 decimals coincide. The cubic root of 428734 is about 75.4042761543.

The spelling of 428734 in words is "four hundred twenty-eight thousand, seven hundred thirty-four".