864217327 has 4 divisors (see below), whose sum is σ = 864778960. Its totient is φ = 863655696.

The previous prime is 864217301. The next prime is 864217351. The reversal of 864217327 is 723712468.

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 864217327 - 2¹¹ = 864215279 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864217327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864227327) 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 3 ways as a sum of consecutive naturals, for example, 278502 + ... + 281587.

It is an arithmetic number, because the mean of its divisors is an integer number (216194740).

Almost surely, 2^864217327 is an apocalyptic number.

864217327 is a deficient number, since it is larger than the sum of its proper divisors (561633).

864217327 is a wasteful number, since it uses less digits than its factorization.

864217327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561632.

The product of its digits is 112896, while the sum is 40.

The square root of 864217327 is about 29397.5734883000. The cubic root of 864217327 is about 952.5204821502.

The spelling of 864217327 in words is "eight hundred sixty-four million, two hundred seventeen thousand, three hundred twenty-seven".