868831927 has 2 divisors, whose sum is σ = 868831928. Its totient is φ = 868831926.

The previous prime is 868831921. The next prime is 868831939. The reversal of 868831927 is 729138868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 868831927 - 2³ = 868831919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (868831921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434415963 + 434415964.

It is an arithmetic number, because the mean of its divisors is an integer number (434415964).

Almost surely, 2^868831927 is an apocalyptic number.

868831927 is a deficient number, since it is larger than the sum of its proper divisors (1).

868831927 is an equidigital number, since it uses as much as digits as its factorization.

868831927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 52.

The square root of 868831927 is about 29475.9550651035. The cubic root of 868831927 is about 954.2128422225.

The spelling of 868831927 in words is "eight hundred sixty-eight million, eight hundred thirty-one thousand, nine hundred twenty-seven".