320434603 has 4 divisors (see below), whose sum is σ = 323374480. Its totient is φ = 317494728.

The previous prime is 320434567. The next prime is 320434607. The reversal of 320434603 is 306434023.

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 320434603 - 2²⁵ = 286880171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320434607) 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, 1469775 + ... + 1469992.

It is an arithmetic number, because the mean of its divisors is an integer number (80843620).

Almost surely, 2^320434603 is an apocalyptic number.

320434603 is a deficient number, since it is larger than the sum of its proper divisors (2939877).

320434603 is a wasteful number, since it uses less digits than its factorization.

320434603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2939876.

The product of its (nonzero) digits is 5184, while the sum is 25.

The square root of 320434603 is about 17900.6872214449. The cubic root of 320434603 is about 684.2998888759.

Adding to 320434603 its reverse (306434023), we get a palindrome (626868626).

The spelling of 320434603 in words is "three hundred twenty million, four hundred thirty-four thousand, six hundred three".