343520603 has 4 divisors (see below), whose sum is σ = 350829600. Its totient is φ = 336211608.

The previous prime is 343520599. The next prime is 343520609. The reversal of 343520603 is 306025343.

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 343520603 - 2² = 343520599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343520609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3654428 + ... + 3654521.

It is an arithmetic number, because the mean of its divisors is an integer number (87707400).

Almost surely, 2^343520603 is an apocalyptic number.

343520603 is a deficient number, since it is larger than the sum of its proper divisors (7308997).

343520603 is an equidigital number, since it uses as much as digits as its factorization.

343520603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308996.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 343520603 is about 18534.3088082615. The cubic root of 343520603 is about 700.3539726753.

Adding to 343520603 its reverse (306025343), we get a palindrome (649545946).

The spelling of 343520603 in words is "three hundred forty-three million, five hundred twenty thousand, six hundred three".