671470771 has 2 divisors, whose sum is σ = 671470772. Its totient is φ = 671470770.

The previous prime is 671470759. The next prime is 671470801. The reversal of 671470771 is 177074176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671470771 - 2¹⁵ = 671438003 is a prime.

It is not a weakly prime, because it can be changed into another prime (671470721) 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, 335735385 + 335735386.

It is an arithmetic number, because the mean of its divisors is an integer number (335735386).

Almost surely, 2^671470771 is an apocalyptic number.

671470771 is a deficient number, since it is larger than the sum of its proper divisors (1).

671470771 is an equidigital number, since it uses as much as digits as its factorization.

671470771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 57624, while the sum is 40.

The square root of 671470771 is about 25912.7530571339. The cubic root of 671470771 is about 875.6738302346.

The spelling of 671470771 in words is "six hundred seventy-one million, four hundred seventy thousand, seven hundred seventy-one".