671186627 has 2 divisors, whose sum is σ = 671186628. Its totient is φ = 671186626.

The previous prime is 671186591. The next prime is 671186641. The reversal of 671186627 is 726681176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671186627 - 2¹⁶ = 671121091 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671186657) 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, 335593313 + 335593314.

It is an arithmetic number, because the mean of its divisors is an integer number (335593314).

Almost surely, 2^671186627 is an apocalyptic number.

671186627 is a deficient number, since it is larger than the sum of its proper divisors (1).

671186627 is an equidigital number, since it uses as much as digits as its factorization.

671186627 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 44.

The square root of 671186627 is about 25907.2697712437. The cubic root of 671186627 is about 875.5502941698.

The spelling of 671186627 in words is "six hundred seventy-one million, one hundred eighty-six thousand, six hundred twenty-seven".