428983 has 4 divisors (see below), whose sum is σ = 439488. Its totient is φ = 418480.

The previous prime is 428977. The next prime is 429007. The reversal of 428983 is 389824.

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

It is a cyclic number.

It is not a de Polignac number, because 428983 - 2⁵ = 428951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428083) 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, 5191 + ... + 5272.

It is an arithmetic number, because the mean of its divisors is an integer number (109872).

2⁴²⁸⁹⁸³ is an apocalyptic number.

428983 is a deficient number, since it is larger than the sum of its proper divisors (10505).

428983 is a wasteful number, since it uses less digits than its factorization.

428983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504.

The product of its digits is 13824, while the sum is 34.

The square root of 428983 is about 654.9679381466. The cubic root of 428983 is about 75.4188710866.

It can be divided in two parts, 42 and 8983, that added together give a square (9025 = 95²).

The spelling of 428983 in words is "four hundred twenty-eight thousand, nine hundred eighty-three".