673864211 has 2 divisors, whose sum is σ = 673864212. Its totient is φ = 673864210.

The previous prime is 673864201. The next prime is 673864231. The reversal of 673864211 is 112468376.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673864211 is a prime.

It is not a weakly prime, because it can be changed into another prime (673864201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336932105 + 336932106.

It is an arithmetic number, because the mean of its divisors is an integer number (336932106).

Almost surely, 2^673864211 is an apocalyptic number.

673864211 is a deficient number, since it is larger than the sum of its proper divisors (1).

673864211 is an equidigital number, since it uses as much as digits as its factorization.

673864211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 673864211 is about 25958.8946413363. The cubic root of 673864211 is about 876.7130352923.

The spelling of 673864211 in words is "six hundred seventy-three million, eight hundred sixty-four thousand, two hundred eleven".