428735 has 8 divisors (see below), whose sum is σ = 541680.
Its totient is φ = 324864.
The previous prime is 428731. The next prime is 428741. The reversal of 428735 is 537824.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 428735 - 22 = 428731 is a prime.
It is a plaindrome in base 16.
It is a junction number, because it is equal to n+sod(n) for n = 428698 and 428707.
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 428735.
It is not an unprimeable number, because it can be changed into a prime (428731) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2162 + ... + 2351.
It is an arithmetic number, because the mean of its divisors is an integer number (67710).
It is the magic constant of a 95 × 95 magic square.
2428735 is an apocalyptic number.
428735 is a deficient number, since it is larger than the sum of its proper divisors (112945).
428735 is a wasteful number, since it uses less digits than its factorization.
428735 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4537.
The product of its digits is 6720, while the sum is 29.
The square root of 428735 is about 654.7785885320.
The cubic root of 428735 is about 75.4043347798.
The spelling of 428735 in words is "four hundred twenty-eight thousand, seven hundred thirty-five".