871213799 has 2 divisors, whose sum is σ = 871213800. Its totient is φ = 871213798.

The previous prime is 871213793. The next prime is 871213813. The reversal of 871213799 is 997312178.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 871213799 - 2⁸ = 871213543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (871213793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435606899 + 435606900.

It is an arithmetic number, because the mean of its divisors is an integer number (435606900).

Almost surely, 2^871213799 is an apocalyptic number.

871213799 is a deficient number, since it is larger than the sum of its proper divisors (1).

871213799 is an equidigital number, since it uses as much as digits as its factorization.

871213799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 190512, while the sum is 47.

The square root of 871213799 is about 29516.3310558748. The cubic root of 871213799 is about 955.0840268527.

The spelling of 871213799 in words is "eight hundred seventy-one million, two hundred thirteen thousand, seven hundred ninety-nine".