864711767 has 2 divisors, whose sum is σ = 864711768. Its totient is φ = 864711766.

The previous prime is 864711751. The next prime is 864711779. The reversal of 864711767 is 767117468.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864711767 - 2⁴ = 864711751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864711787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432355883 + 432355884.

It is an arithmetic number, because the mean of its divisors is an integer number (432355884).

Almost surely, 2^864711767 is an apocalyptic number.

864711767 is a deficient number, since it is larger than the sum of its proper divisors (1).

864711767 is an equidigital number, since it uses as much as digits as its factorization.

864711767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 395136, while the sum is 47.

The square root of 864711767 is about 29405.9818234318. The cubic root of 864711767 is about 952.7021009877.

The spelling of 864711767 in words is "eight hundred sixty-four million, seven hundred eleven thousand, seven hundred sixty-seven".