871235867 has 2 divisors, whose sum is σ = 871235868. Its totient is φ = 871235866.

The previous prime is 871235843. The next prime is 871235887. The reversal of 871235867 is 768532178.

It is a happy number.

871235867 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 871235867 - 2¹⁶ = 871170331 is a prime.

It is not a weakly prime, because it can be changed into another prime (871235887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 435617933 + 435617934.

It is an arithmetic number, because the mean of its divisors is an integer number (435617934).

Almost surely, 2^871235867 is an apocalyptic number.

871235867 is a deficient number, since it is larger than the sum of its proper divisors (1).

871235867 is an equidigital number, since it uses as much as digits as its factorization.

871235867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 47.

The square root of 871235867 is about 29516.7048804571. The cubic root of 871235867 is about 955.0920909339.

The spelling of 871235867 in words is "eight hundred seventy-one million, two hundred thirty-five thousand, eight hundred sixty-seven".