871345906 has 16 divisors (see below), whose sum is σ = 1316595384. Its totient is φ = 432492544.

The previous prime is 871345889. The next prime is 871345913. The reversal of 871345906 is 609543178.

It can be written as a sum of positive squares in 4 ways, for example, as 721405881 + 149940025 = 26859^2 + 12245^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161850 + ... + 167146.

Almost surely, 2^871345906 is an apocalyptic number.

871345906 is a deficient number, since it is larger than the sum of its proper divisors (445249478).

871345906 is a wasteful number, since it uses less digits than its factorization.

871345906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 871345906 is about 29518.5688338713. The cubic root of 871345906 is about 955.1322993161.

The spelling of 871345906 in words is "eight hundred seventy-one million, three hundred forty-five thousand, nine hundred six".