117894173 has 6 divisors (see below), whose sum is σ = 121168026. Its totient is φ = 114706512.

The previous prime is 117894163. The next prime is 117894187. The reversal of 117894173 is 371498711.

It can be written as a sum of positive squares in 3 ways, for example, as 23454649 + 94439524 = 4843^2 + 9718^2 .

It is not a de Polignac number, because 117894173 - 2¹² = 117890077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117894173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117894163) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41690 + ... + 44427.

It is an arithmetic number, because the mean of its divisors is an integer number (20194671).

Almost surely, 2^117894173 is an apocalyptic number.

It is an amenable number.

117894173 is a deficient number, since it is larger than the sum of its proper divisors (3273853).

117894173 is an frugal number, since it uses more digits than its factorization.

117894173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86191 (or 86154 counting only the distinct ones).

The product of its digits is 42336, while the sum is 41.

The square root of 117894173 is about 10857.9083160616. The cubic root of 117894173 is about 490.3401400647.

The spelling of 117894173 in words is "one hundred seventeen million, eight hundred ninety-four thousand, one hundred seventy-three".