864112787 has 2 divisors, whose sum is σ = 864112788. Its totient is φ = 864112786.

The previous prime is 864112759. The next prime is 864112789. The reversal of 864112787 is 787211468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864112787 - 2¹⁴ = 864096403 is a prime.

Together with 864112789, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (864112789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432056393 + 432056394.

It is an arithmetic number, because the mean of its divisors is an integer number (432056394).

Almost surely, 2^864112787 is an apocalyptic number.

864112787 is a deficient number, since it is larger than the sum of its proper divisors (1).

864112787 is an equidigital number, since it uses as much as digits as its factorization.

864112787 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 44.

The square root of 864112787 is about 29395.7953966209. The cubic root of 864112787 is about 952.4820734060.

It can be divided in two parts, 86411 and 2787, that added together give a palindrome (89198).

The spelling of 864112787 in words is "eight hundred sixty-four million, one hundred twelve thousand, seven hundred eighty-seven".