671332603 has 2 divisors, whose sum is σ = 671332604. Its totient is φ = 671332602.

The previous prime is 671332591. The next prime is 671332639. The reversal of 671332603 is 306233176.

671332603 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671332603 - 2²¹ = 669235451 is a prime.

It is not a weakly prime, because it can be changed into another prime (671332663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335666301 + 335666302.

It is an arithmetic number, because the mean of its divisors is an integer number (335666302).

Almost surely, 2^671332603 is an apocalyptic number.

671332603 is a deficient number, since it is larger than the sum of its proper divisors (1).

671332603 is an equidigital number, since it uses as much as digits as its factorization.

671332603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 31.

The square root of 671332603 is about 25910.0868968053. The cubic root of 671332603 is about 875.6137638815.

Adding to 671332603 its reverse (306233176), we get a palindrome (977565779).

The spelling of 671332603 in words is "six hundred seventy-one million, three hundred thirty-two thousand, six hundred three".