428751 has 6 divisors (see below), whose sum is σ = 619320. Its totient is φ = 285828.

The previous prime is 428741. The next prime is 428759. The reversal of 428751 is 157824.

It is not a de Polignac number, because 428751 - 2¹⁰ = 427727 is a prime.

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 (428759) 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 5 ways as a sum of consecutive naturals, for example, 23811 + ... + 23828.

It is an arithmetic number, because the mean of its divisors is an integer number (103220).

2⁴²⁸⁷⁵¹ is an apocalyptic number.

428751 is a deficient number, since it is larger than the sum of its proper divisors (190569).

428751 is a wasteful number, since it uses less digits than its factorization.

428751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47645 (or 47642 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 428751 is about 654.7908062885. The cubic root of 428751 is about 75.4052727751.

The spelling of 428751 in words is "four hundred twenty-eight thousand, seven hundred fifty-one".