671017116 has 144 divisors (see below), whose sum is σ = 1988437248. Its totient is φ = 172381440.

The previous prime is 671017099. The next prime is 671017133. The reversal of 671017116 is 611710176.

It is an interprime number because it is at equal distance from previous prime (671017099) and next prime (671017133).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1087240 + ... + 1087856.

It is an arithmetic number, because the mean of its divisors is an integer number (13808592).

Almost surely, 2^671017116 is an apocalyptic number.

671017116 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 671017116, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (994218624).

671017116 is an abundant number, since it is smaller than the sum of its proper divisors (1317420132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671017116 is a wasteful number, since it uses less digits than its factorization.

671017116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 30.

The square root of 671017116 is about 25903.9980697961. The cubic root of 671017116 is about 875.4765799965.

The spelling of 671017116 in words is "six hundred seventy-one million, seventeen thousand, one hundred sixteen".