670673671 has 2 divisors, whose sum is σ = 670673672. Its totient is φ = 670673670.

The previous prime is 670673657. The next prime is 670673683. The reversal of 670673671 is 176376076.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 670673671 - 2¹⁵ = 670640903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (670673371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335336835 + 335336836.

It is an arithmetic number, because the mean of its divisors is an integer number (335336836).

Almost surely, 2^670673671 is an apocalyptic number.

670673671 is a deficient number, since it is larger than the sum of its proper divisors (1).

670673671 is an equidigital number, since it uses as much as digits as its factorization.

670673671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 222264, while the sum is 43.

The square root of 670673671 is about 25897.3680322924. The cubic root of 670673671 is about 875.3271901822.

The spelling of 670673671 in words is "six hundred seventy million, six hundred seventy-three thousand, six hundred seventy-one".