863217071 has 8 divisors (see below), whose sum is σ = 903937920. Its totient is φ = 822762072.

The previous prime is 863217049. The next prime is 863217097. The reversal of 863217071 is 170712368.

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

It is not a de Polignac number, because 863217071 - 2²⁶ = 796108207 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 (863217001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59801 + ... + 72818.

It is an arithmetic number, because the mean of its divisors is an integer number (112992240).

Almost surely, 2^863217071 is an apocalyptic number.

863217071 is a deficient number, since it is larger than the sum of its proper divisors (40720849).

863217071 is a wasteful number, since it uses less digits than its factorization.

863217071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132925.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 863217071 is about 29380.5560022271. The cubic root of 863217071 is about 952.1528538871.

The spelling of 863217071 in words is "eight hundred sixty-three million, two hundred seventeen thousand, seventy-one".