800217560 has 16 divisors (see below), whose sum is σ = 1800489600. Its totient is φ = 320087008.

The previous prime is 800217553. The next prime is 800217569. The reversal of 800217560 is 65712008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800217569) 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, 10002680 + ... + 10002759.

It is an arithmetic number, because the mean of its divisors is an integer number (112530600).

Almost surely, 2^800217560 is an apocalyptic number.

It is an amenable number.

800217560 is an abundant number, since it is smaller than the sum of its proper divisors (1000272040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

800217560 is a wasteful number, since it uses less digits than its factorization.

800217560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20005450 (or 20005446 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 800217560 is about 28288.1169398035. The cubic root of 800217560 is about 928.4019111009.

Adding to 800217560 its reverse (65712008), we get a palindrome (865929568).

The spelling of 800217560 in words is "eight hundred million, two hundred seventeen thousand, five hundred sixty".