428603 has 6 divisors (see below), whose sum is σ = 498636. Its totient is φ = 367332.

The previous prime is 428579. The next prime is 428629. The reversal of 428603 is 306824.

It is a happy number.

It is not a de Polignac number, because 428603 - 2⁶ = 428539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4325 + ... + 4422.

It is an arithmetic number, because the mean of its divisors is an integer number (83106).

2⁴²⁸⁶⁰³ is an apocalyptic number.

428603 is a deficient number, since it is larger than the sum of its proper divisors (70033).

428603 is an equidigital number, since it uses as much as digits as its factorization.

428603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8761 (or 8754 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 428603 is about 654.6777833408. The cubic root of 428603 is about 75.3965954273.

The spelling of 428603 in words is "four hundred twenty-eight thousand, six hundred three".