867856967 has 2 divisors, whose sum is σ = 867856968. Its totient is φ = 867856966.

The previous prime is 867856937. The next prime is 867856973. The reversal of 867856967 is 769658768.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 867856967 - 2⁶ = 867856903 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (867856937) 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, 433928483 + 433928484.

It is an arithmetic number, because the mean of its divisors is an integer number (433928484).

Almost surely, 2^867856967 is an apocalyptic number.

867856967 is a deficient number, since it is larger than the sum of its proper divisors (1).

867856967 is an equidigital number, since it uses as much as digits as its factorization.

867856967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30481920, while the sum is 62.

The square root of 867856967 is about 29459.4121971230. The cubic root of 867856967 is about 953.8557852257.

The spelling of 867856967 in words is "eight hundred sixty-seven million, eight hundred fifty-six thousand, nine hundred sixty-seven".