864911 has 2 divisors, whose sum is σ = 864912. Its totient is φ = 864910.

The previous prime is 864901. The next prime is 864917. The reversal of 864911 is 119468.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 864911 - 2¹⁰ = 863887 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (864917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 432455 + 432456.

It is an arithmetic number, because the mean of its divisors is an integer number (432456).

2⁸⁶⁴⁹¹¹ is an apocalyptic number.

864911 is a deficient number, since it is larger than the sum of its proper divisors (1).

864911 is an equidigital number, since it uses as much as digits as its factorization.

864911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 29.

The square root of 864911 is about 930.0059139597. The cubic root of 864911 is about 95.2775264142.

The spelling of 864911 in words is "eight hundred sixty-four thousand, nine hundred eleven".