671850117 has 12 divisors (see below), whose sum is σ = 973515660. Its totient is φ = 446485248.

The previous prime is 671850077. The next prime is 671850121. The reversal of 671850117 is 711058176.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 31203396 + 640646721 = 5586^2 + 25311^2 .

It is not a de Polignac number, because 671850117 - 2¹¹ = 671848069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (671855117) 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 in 11 ways as a sum of consecutive naturals, for example, 114892 + ... + 120597.

It is an arithmetic number, because the mean of its divisors is an integer number (81126305).

Almost surely, 2^671850117 is an apocalyptic number.

It is an amenable number.

671850117 is a deficient number, since it is larger than the sum of its proper divisors (301665543).

671850117 is a wasteful number, since it uses less digits than its factorization.

671850117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235812 (or 235809 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 36.

The square root of 671850117 is about 25920.0717012897. The cubic root of 671850117 is about 875.8387025534.

The spelling of 671850117 in words is "six hundred seventy-one million, eight hundred fifty thousand, one hundred seventeen".