426603 has 8 divisors (see below), whose sum is σ = 582208. Its totient is φ = 277704.

The previous prime is 426583. The next prime is 426611. The reversal of 426603 is 306624.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 426603 - 2⁹ = 426091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 426603.

It is not an unprimeable number, because it can be changed into a prime (426103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1525 + ... + 1782.

It is an arithmetic number, because the mean of its divisors is an integer number (72776).

2⁴²⁶⁶⁰³ is an apocalyptic number.

426603 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

426603 is a deficient number, since it is larger than the sum of its proper divisors (155605).

426603 is a wasteful number, since it uses less digits than its factorization.

426603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 426603 is about 653.1485282843. The cubic root of 426603 is about 75.2791375850.

Adding to 426603 its sum of digits (21), we get a palindrome (426624).

The spelling of 426603 in words is "four hundred twenty-six thousand, six hundred three".