867117220 has 12 divisors (see below), whose sum is σ = 1820946204. Its totient is φ = 346846880.

The previous prime is 867117211. The next prime is 867117221. The reversal of 867117220 is 22711768.

It is a happy number.

867117220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 601622784 + 265494436 = 24528^2 + 16294^2 .

It is not an unprimeable number, because it can be changed into a prime (867117221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21677911 + ... + 21677950.

It is an arithmetic number, because the mean of its divisors is an integer number (151745517).

Almost surely, 2^867117220 is an apocalyptic number.

It is an amenable number.

867117220 is an abundant number, since it is smaller than the sum of its proper divisors (953828984).

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

867117220 is a wasteful number, since it uses less digits than its factorization.

867117220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43355870 (or 43355868 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 34.

The square root of 867117220 is about 29446.8541613531. The cubic root of 867117220 is about 953.5846911932.

Adding to 867117220 its reverse (22711768), we get a palindrome (889828988).

The spelling of 867117220 in words is "eight hundred sixty-seven million, one hundred seventeen thousand, two hundred twenty".