868708859 has 2 divisors, whose sum is σ = 868708860. Its totient is φ = 868708858.

The previous prime is 868708847. The next prime is 868708871. The reversal of 868708859 is 958807868.

It is a balanced prime because it is at equal distance from previous prime (868708847) and next prime (868708871).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-868708859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 868708798 and 868708807.

It is not a weakly prime, because it can be changed into another prime (868708879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434354429 + 434354430.

It is an arithmetic number, because the mean of its divisors is an integer number (434354430).

Almost surely, 2^868708859 is an apocalyptic number.

868708859 is a deficient number, since it is larger than the sum of its proper divisors (1).

868708859 is an equidigital number, since it uses as much as digits as its factorization.

868708859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7741440, while the sum is 59.

The square root of 868708859 is about 29473.8673913011. The cubic root of 868708859 is about 954.1677860931.

Subtracting 868708859 from its reverse (958807868), we obtain a palindrome (90099009).

The spelling of 868708859 in words is "eight hundred sixty-eight million, seven hundred eight thousand, eight hundred fifty-nine".