428763 has 8 divisors (see below), whose sum is σ = 576576. Its totient is φ = 283400.

The previous prime is 428759. The next prime is 428777. The reversal of 428763 is 367824.

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 428763 - 2² = 428759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 428763.

It is not an unprimeable number, because it can be changed into a prime (428563) 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 7 ways as a sum of consecutive naturals, for example, 153 + ... + 938.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2⁴²⁸⁷⁶³ is an apocalyptic number.

428763 is a deficient number, since it is larger than the sum of its proper divisors (147813).

428763 is a wasteful number, since it uses less digits than its factorization.

428763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1225.

The product of its digits is 8064, while the sum is 30.

The square root of 428763 is about 654.7999694563. The cubic root of 428763 is about 75.4059762564.

The spelling of 428763 in words is "four hundred twenty-eight thousand, seven hundred sixty-three".