864211327 has 4 divisors (see below), whose sum is σ = 987670096. Its totient is φ = 740752560.

The previous prime is 864211319. The next prime is 864211343. The reversal of 864211327 is 723112468.

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 864211327 - 2³ = 864211319 is a prime.

It is a super-2 number, since 2×864211327² = 1493722435430201858, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 864211292 and 864211301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864211357) 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, 61729374 + ... + 61729387.

It is an arithmetic number, because the mean of its divisors is an integer number (246917524).

Almost surely, 2^864211327 is an apocalyptic number.

864211327 is a deficient number, since it is larger than the sum of its proper divisors (123458769).

864211327 is a wasteful number, since it uses less digits than its factorization.

864211327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123458768.

The product of its digits is 16128, while the sum is 34.

The square root of 864211327 is about 29397.4714388840. The cubic root of 864211327 is about 952.5182777910.

The spelling of 864211327 in words is "eight hundred sixty-four million, two hundred eleven thousand, three hundred twenty-seven".