864841069 has 16 divisors (see below), whose sum is σ = 961607680. Its totient is φ = 774431280.

The previous prime is 864841049. The next prime is 864841091. The reversal of 864841069 is 960148468.

It is a cyclic number.

It is not a de Polignac number, because 864841069 - 2⁵ = 864841037 is a prime.

It is a super-2 number, since 2×864841069² = 1495900149258125522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864841049) 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 in 15 ways as a sum of consecutive naturals, for example, 8254 + ... + 42400.

It is an arithmetic number, because the mean of its divisors is an integer number (60100480).

Almost surely, 2^864841069 is an apocalyptic number.

It is an amenable number.

864841069 is a deficient number, since it is larger than the sum of its proper divisors (96766611).

864841069 is a wasteful number, since it uses less digits than its factorization.

864841069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34240.

The product of its (nonzero) digits is 331776, while the sum is 46.

The square root of 864841069 is about 29408.1803075267. The cubic root of 864841069 is about 952.7495850752.

The spelling of 864841069 in words is "eight hundred sixty-four million, eight hundred forty-one thousand, sixty-nine".