868262869 has 2 divisors, whose sum is σ = 868262870. Its totient is φ = 868262868.

The previous prime is 868262839. The next prime is 868262887. The reversal of 868262869 is 968262868.

868262869 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 can be written as a sum of positive squares in only one way, i.e., 865242225 + 3020644 = 29415^2 + 1738^2 .

It is a cyclic number.

It is not a de Polignac number, because 868262869 - 2²³ = 859874261 is a prime.

It is a super-2 number, since 2×868262869² = 1507760819368222322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868262809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434131434 + 434131435.

It is an arithmetic number, because the mean of its divisors is an integer number (434131435).

Almost surely, 2^868262869 is an apocalyptic number.

It is an amenable number.

868262869 is a deficient number, since it is larger than the sum of its proper divisors (1).

868262869 is an equidigital number, since it uses as much as digits as its factorization.

868262869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3981312, while the sum is 55.

The square root of 868262869 is about 29466.3005652220. The cubic root of 868262869 is about 954.0044701052.

Subtracting 868262869 from its reverse (968262868), we obtain a palindrome (99999999).

The spelling of 868262869 in words is "eight hundred sixty-eight million, two hundred sixty-two thousand, eight hundred sixty-nine".