671771003 has 2 divisors, whose sum is σ = 671771004. Its totient is φ = 671771002.

The previous prime is 671770951. The next prime is 671771017. The reversal of 671771003 is 300177176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671771003 - 2¹⁶ = 671705467 is a prime.

It is not a weakly prime, because it can be changed into another prime (671771063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335885501 + 335885502.

It is an arithmetic number, because the mean of its divisors is an integer number (335885502).

Almost surely, 2^671771003 is an apocalyptic number.

671771003 is a deficient number, since it is larger than the sum of its proper divisors (1).

671771003 is an equidigital number, since it uses as much as digits as its factorization.

671771003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6174, while the sum is 32.

The square root of 671771003 is about 25918.5455417545. The cubic root of 671771003 is about 875.8043229493.

The spelling of 671771003 in words is "six hundred seventy-one million, seven hundred seventy-one thousand, three".