671164327 has 2 divisors, whose sum is σ = 671164328. Its totient is φ = 671164326.

The previous prime is 671164297. The next prime is 671164447. The reversal of 671164327 is 723461176.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 671164327 - 2¹¹ = 671162279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671164727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335582163 + 335582164.

It is an arithmetic number, because the mean of its divisors is an integer number (335582164).

Almost surely, 2^671164327 is an apocalyptic number.

671164327 is a deficient number, since it is larger than the sum of its proper divisors (1).

671164327 is an equidigital number, since it uses as much as digits as its factorization.

671164327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 671164327 is about 25906.8393865404. The cubic root of 671164327 is about 875.5405974193.

The spelling of 671164327 in words is "six hundred seventy-one million, one hundred sixty-four thousand, three hundred twenty-seven".