2871116397 has 6 divisors (see below), whose sum is σ = 4147168142. Its totient is φ = 1914077592.

The previous prime is 2871116387. The next prime is 2871116411. The reversal of 2871116397 is 7936111782.

2871116397 is a `hidden beast` number, since 2 + 8 + 7 + 1 + 1 + 1 + 639 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2730480516 + 140635881 = 52254^2 + 11859^2 .

It is not a de Polignac number, because 2871116397 - 2⁸ = 2871116141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2871116327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 159506458 + ... + 159506475.

Almost surely, 2^2871116397 is an apocalyptic number.

It is an amenable number.

2871116397 is a deficient number, since it is larger than the sum of its proper divisors (1276051745).

2871116397 is a wasteful number, since it uses less digits than its factorization.

2871116397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319012939 (or 319012936 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 2871116397 is about 53582.7994509432. The cubic root of 2871116397 is about 1421.2929434281.

The spelling of 2871116397 in words is "two billion, eight hundred seventy-one million, one hundred sixteen thousand, three hundred ninety-seven".