667342003 has 2 divisors, whose sum is σ = 667342004. Its totient is φ = 667342002.

The previous prime is 667342001. The next prime is 667342061. The reversal of 667342003 is 300243766.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 667342003 - 2¹ = 667342001 is a prime.

Together with 667342001, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (667342001) 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 as a sum of consecutive naturals, namely, 333671001 + 333671002.

It is an arithmetic number, because the mean of its divisors is an integer number (333671002).

Almost surely, 2^667342003 is an apocalyptic number.

667342003 is a deficient number, since it is larger than the sum of its proper divisors (1).

667342003 is an equidigital number, since it uses as much as digits as its factorization.

667342003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 667342003 is about 25832.9634962774. The cubic root of 667342003 is about 873.8753455008.

Adding to 667342003 its reverse (300243766), we get a palindrome (967585769).

The spelling of 667342003 in words is "six hundred sixty-seven million, three hundred forty-two thousand, three".