428612 has 12 divisors (see below), whose sum is σ = 759696. Its totient is φ = 211560.

The previous prime is 428579. The next prime is 428629. The reversal of 428612 is 216824.

It is an unprimeable number.

428612 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (63308).

2⁴²⁸⁶¹² is an apocalyptic number.

It is an amenable number.

428612 is a deficient number, since it is larger than the sum of its proper divisors (331084).

428612 is a wasteful number, since it uses less digits than its factorization.

428612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378 (or 1376 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

The square root of 428612 is about 654.6846569151. The cubic root of 428612 is about 75.3971231609.

The spelling of 428612 in words is "four hundred twenty-eight thousand, six hundred twelve".