428713 has 4 divisors (see below), whose sum is σ = 433620. Its totient is φ = 423808.

The previous prime is 428693. The next prime is 428731. The reversal of 428713 is 317824.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59049 + 369664 = 243^2 + 608^2 .

It is a cyclic number.

It is not a de Polignac number, because 428713 - 2¹³ = 420521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423713) 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, 2320 + ... + 2497.

It is an arithmetic number, because the mean of its divisors is an integer number (108405).

2⁴²⁸⁷¹³ is an apocalyptic number.

It is an amenable number.

428713 is a deficient number, since it is larger than the sum of its proper divisors (4907).

428713 is an equidigital number, since it uses as much as digits as its factorization.

428713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4906.

The product of its digits is 1344, while the sum is 25.

The square root of 428713 is about 654.7617887446. The cubic root of 428713 is about 75.4030449980.

Subtracting from 428713 its reverse (317824), we obtain a square (110889 = 333²).

The spelling of 428713 in words is "four hundred twenty-eight thousand, seven hundred thirteen".