673420003 has 2 divisors, whose sum is σ = 673420004. Its totient is φ = 673420002.

The previous prime is 673420001. The next prime is 673420051. The reversal of 673420003 is 300024376.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 673420003 - 2¹ = 673420001 is a prime.

Together with 673420001, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 673420003.

It is not a weakly prime, because it can be changed into another prime (673420001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336710001 + 336710002.

It is an arithmetic number, because the mean of its divisors is an integer number (336710002).

Almost surely, 2^673420003 is an apocalyptic number.

673420003 is a deficient number, since it is larger than the sum of its proper divisors (1).

673420003 is an equidigital number, since it uses as much as digits as its factorization.

673420003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 25.

The square root of 673420003 is about 25950.3372425100. The cubic root of 673420003 is about 876.5203512956.

Adding to 673420003 its reverse (300024376), we get a palindrome (973444379).

The spelling of 673420003 in words is "six hundred seventy-three million, four hundred twenty thousand, three".