671593229 has 2 divisors, whose sum is σ = 671593230. Its totient is φ = 671593228.

The previous prime is 671593163. The next prime is 671593231. The reversal of 671593229 is 922395176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509540329 + 162052900 = 22573^2 + 12730^2 .

It is a cyclic number.

It is not a de Polignac number, because 671593229 - 2¹² = 671589133 is a prime.

It is a Sophie Germain prime.

Together with 671593231, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 671593229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671593249) 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, 335796614 + 335796615.

It is an arithmetic number, because the mean of its divisors is an integer number (335796615).

Almost surely, 2^671593229 is an apocalyptic number.

It is an amenable number.

671593229 is a deficient number, since it is larger than the sum of its proper divisors (1).

671593229 is an equidigital number, since it uses as much as digits as its factorization.

671593229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 44.

The square root of 671593229 is about 25915.1158399881. The cubic root of 671593229 is about 875.7270600263.

The spelling of 671593229 in words is "six hundred seventy-one million, five hundred ninety-three thousand, two hundred twenty-nine".