671606627 has 2 divisors, whose sum is σ = 671606628. Its totient is φ = 671606626.

The previous prime is 671606591. The next prime is 671606629. The reversal of 671606627 is 726606176.

671606627 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671606627 - 2¹⁰ = 671605603 is a prime.

It is a super-2 number, since 2×671606627² = 902110922860634258, which contains 22 as substring.

Together with 671606629, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (671606629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335803313 + 335803314.

It is an arithmetic number, because the mean of its divisors is an integer number (335803314).

Almost surely, 2^671606627 is an apocalyptic number.

671606627 is a deficient number, since it is larger than the sum of its proper divisors (1).

671606627 is an equidigital number, since it uses as much as digits as its factorization.

671606627 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 671606627 is about 25915.3743364822. The cubic root of 671606627 is about 875.7328834487.

The spelling of 671606627 in words is "six hundred seventy-one million, six hundred six thousand, six hundred twenty-seven".