864214917 has 8 divisors (see below), whose sum is σ = 1152592896. Its totient is φ = 575990112.

The previous prime is 864214913. The next prime is 864214963. The reversal of 864214917 is 719412468.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 864214917 - 2² = 864214913 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864214913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24408 + ... + 48209.

It is an arithmetic number, because the mean of its divisors is an integer number (144074112).

Almost surely, 2^864214917 is an apocalyptic number.

It is an amenable number.

864214917 is a deficient number, since it is larger than the sum of its proper divisors (288377979).

864214917 is a wasteful number, since it uses less digits than its factorization.

864214917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76587.

The product of its digits is 96768, while the sum is 42.

The square root of 864214917 is about 29397.5324984938. The cubic root of 864214917 is about 952.5195967338.

The spelling of 864214917 in words is "eight hundred sixty-four million, two hundred fourteen thousand, nine hundred seventeen".