671000003 has 2 divisors, whose sum is σ = 671000004. Its totient is φ = 671000002.

The previous prime is 670999963. The next prime is 671000017. The reversal of 671000003 is 300000176.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671000003 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (671000023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335500001 + 335500002.

It is an arithmetic number, because the mean of its divisors is an integer number (335500002).

Almost surely, 2^671000003 is an apocalyptic number.

671000003 is a deficient number, since it is larger than the sum of its proper divisors (1).

671000003 is an equidigital number, since it uses as much as digits as its factorization.

671000003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 671000003 is about 25903.6677518841. The cubic root of 671000003 is about 875.4691374849.

Adding to 671000003 its reverse (300000176), we get a palindrome (971000179).

The spelling of 671000003 in words is "six hundred seventy-one million, three", and thus it is an aban number.