1603423 has 8 divisors (see below), whose sum is σ = 1708992. Its totient is φ = 1499136.

The previous prime is 1603421. The next prime is 1603453. The reversal of 1603423 is 3243061.

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

It is a cyclic number.

It is not a de Polignac number, because 1603423 - 2¹ = 1603421 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 1603423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1603421) 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, 4186 + ... + 4552.

It is an arithmetic number, because the mean of its divisors is an integer number (213624).

2^1603423 is an apocalyptic number.

1603423 is a deficient number, since it is larger than the sum of its proper divisors (105569).

1603423 is a wasteful number, since it uses less digits than its factorization.

1603423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1603423 is about 1266.2634007188. The cubic root of 1603423 is about 117.0440577250.

Adding to 1603423 its reverse (3243061), we get a palindrome (4846484).

The spelling of 1603423 in words is "one million, six hundred three thousand, four hundred twenty-three".