864008111 has 4 divisors (see below), whose sum is σ = 864261072. Its totient is φ = 863755152.

The previous prime is 864008063. The next prime is 864008137. The reversal of 864008111 is 111800468.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 864008111 - 2¹⁰ = 864007087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864008141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121286 + ... + 128211.

It is an arithmetic number, because the mean of its divisors is an integer number (216065268).

Almost surely, 2^864008111 is an apocalyptic number.

864008111 is a deficient number, since it is larger than the sum of its proper divisors (252961).

864008111 is a wasteful number, since it uses less digits than its factorization.

864008111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252960.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 864008111 is about 29394.0148839862. The cubic root of 864008111 is about 952.4436115906.

Adding to 864008111 its reverse (111800468), we get a palindrome (975808579).

The spelling of 864008111 in words is "eight hundred sixty-four million, eight thousand, one hundred eleven".