671271696 has 30 divisors (see below), whose sum is σ = 1878628830. Its totient is φ = 223757184.

The previous prime is 671271677. The next prime is 671271709. The reversal of 671271696 is 696172176.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 652087296 + 19184400 = 25536^2 + 4380^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2330661 + ... + 2330948.

It is an arithmetic number, because the mean of its divisors is an integer number (62620961).

Almost surely, 2^671271696 is an apocalyptic number.

It is an amenable number.

671271696 is an abundant number, since it is smaller than the sum of its proper divisors (1207357134).

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

671271696 is a wasteful number, since it uses less digits than its factorization.

671271696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4661623 (or 4661614 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 671271696 is about 25908.9115170823. The cubic root of 671271696 is about 875.5872829091.

The spelling of 671271696 in words is "six hundred seventy-one million, two hundred seventy-one thousand, six hundred ninety-six".