671347210 has 16 divisors (see below), whose sum is σ = 1208730600. Its totient is φ = 268470976.

The previous prime is 671347189. The next prime is 671347283. The reversal of 671347210 is 12743176.

It can be written as a sum of positive squares in 4 ways, for example, as 626550961 + 44796249 = 25031^2 + 6693^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57336 + ... + 68044.

Almost surely, 2^671347210 is an apocalyptic number.

671347210 is a deficient number, since it is larger than the sum of its proper divisors (537383390).

671347210 is a wasteful number, since it uses less digits than its factorization.

671347210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16985.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 671347210 is about 25910.3687739098. The cubic root of 671347210 is about 875.6201144333.

The spelling of 671347210 in words is "six hundred seventy-one million, three hundred forty-seven thousand, two hundred ten".