671717113 has 2 divisors, whose sum is σ = 671717114. Its totient is φ = 671717112.

The previous prime is 671717099. The next prime is 671717149. The reversal of 671717113 is 311717176.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504092304 + 167624809 = 22452^2 + 12947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671717113 is a prime.

It is not a weakly prime, because it can be changed into another prime (671717153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335858556 + 335858557.

It is an arithmetic number, because the mean of its divisors is an integer number (335858557).

Almost surely, 2^671717113 is an apocalyptic number.

It is an amenable number.

671717113 is a deficient number, since it is larger than the sum of its proper divisors (1).

671717113 is an equidigital number, since it uses as much as digits as its factorization.

671717113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6174, while the sum is 34.

The square root of 671717113 is about 25917.5059178155. The cubic root of 671717113 is about 875.7809030851.

The spelling of 671717113 in words is "six hundred seventy-one million, seven hundred seventeen thousand, one hundred thirteen".