428746 has 4 divisors (see below), whose sum is σ = 643122. Its totient is φ = 214372.

The previous prime is 428741. The next prime is 428759. The reversal of 428746 is 647824.

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

It can be written as a sum of positive squares in only one way, i.e., 216225 + 212521 = 465^2 + 461^2 .

It is not an unprimeable number, because it can be changed into a prime (428741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107185 + ... + 107188.

2⁴²⁸⁷⁴⁶ is an apocalyptic number.

428746 is a deficient number, since it is larger than the sum of its proper divisors (214376).

428746 is a wasteful number, since it uses less digits than its factorization.

428746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214375.

The product of its digits is 10752, while the sum is 31.

The square root of 428746 is about 654.7869882641. The cubic root of 428746 is about 75.4049796541.

The spelling of 428746 in words is "four hundred twenty-eight thousand, seven hundred forty-six".