869768863 has 2 divisors, whose sum is σ = 869768864. Its totient is φ = 869768862.

The previous prime is 869768843. The next prime is 869768881. The reversal of 869768863 is 368867968.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 869768863 - 2⁵ = 869768831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869768803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434884431 + 434884432.

It is an arithmetic number, because the mean of its divisors is an integer number (434884432).

Almost surely, 2^869768863 is an apocalyptic number.

869768863 is a deficient number, since it is larger than the sum of its proper divisors (1).

869768863 is an equidigital number, since it uses as much as digits as its factorization.

869768863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 61.

The square root of 869768863 is about 29491.8440081321. The cubic root of 869768863 is about 954.5557221882. Note that the first 3 decimals are identical.

The spelling of 869768863 in words is "eight hundred sixty-nine million, seven hundred sixty-eight thousand, eight hundred sixty-three".