871847099 has 2 divisors, whose sum is σ = 871847100. Its totient is φ = 871847098.

The previous prime is 871847063. The next prime is 871847107. The reversal of 871847099 is 990748178.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-871847099 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 871847099.

It is not a weakly prime, because it can be changed into another prime (871841099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435923549 + 435923550.

It is an arithmetic number, because the mean of its divisors is an integer number (435923550).

Almost surely, 2^871847099 is an apocalyptic number.

871847099 is a deficient number, since it is larger than the sum of its proper divisors (1).

871847099 is an equidigital number, since it uses as much as digits as its factorization.

871847099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 53.

The square root of 871847099 is about 29527.0570663586. The cubic root of 871847099 is about 955.3153930280.

The spelling of 871847099 in words is "eight hundred seventy-one million, eight hundred forty-seven thousand, ninety-nine".