117689221 has 16 divisors (see below), whose sum is σ = 132168960. Its totient is φ = 104045760.

The previous prime is 117689219. The next prime is 117689233. The reversal of 117689221 is 122986711.

It is not a de Polignac number, because 117689221 - 2¹ = 117689219 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 (117689261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48196 + ... + 50578.

It is an arithmetic number, because the mean of its divisors is an integer number (8260560).

Almost surely, 2^117689221 is an apocalyptic number.

It is an amenable number.

117689221 is a deficient number, since it is larger than the sum of its proper divisors (14479739).

117689221 is a wasteful number, since it uses less digits than its factorization.

117689221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556.

The product of its digits is 12096, while the sum is 37.

The square root of 117689221 is about 10848.4662971316. The cubic root of 117689221 is about 490.0558328716.

The spelling of 117689221 in words is "one hundred seventeen million, six hundred eighty-nine thousand, two hundred twenty-one".