867871799 has 2 divisors, whose sum is σ = 867871800. Its totient is φ = 867871798.

The previous prime is 867871793. The next prime is 867871813. The reversal of 867871799 is 997178768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 867871799 - 2⁴ = 867871783 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867871793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433935899 + 433935900.

It is an arithmetic number, because the mean of its divisors is an integer number (433935900).

Almost surely, 2^867871799 is an apocalyptic number.

867871799 is a deficient number, since it is larger than the sum of its proper divisors (1).

867871799 is an equidigital number, since it uses as much as digits as its factorization.

867871799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10668672, while the sum is 62.

The square root of 867871799 is about 29459.6639322311. The cubic root of 867871799 is about 953.8612191121.

The spelling of 867871799 in words is "eight hundred sixty-seven million, eight hundred seventy-one thousand, seven hundred ninety-nine".