117794971 has 12 divisors (see below), whose sum is σ = 138571560. Its totient is φ = 99828960.

The previous prime is 117794959. The next prime is 117794977. The reversal of 117794971 is 179497711.

It is not a de Polignac number, because 117794971 - 2²¹ = 115697819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117794977) 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 11 ways as a sum of consecutive naturals, for example, 9145 + ... + 17866.

It is an arithmetic number, because the mean of its divisors is an integer number (11547630).

Almost surely, 2^117794971 is an apocalyptic number.

117794971 is a deficient number, since it is larger than the sum of its proper divisors (20776589).

117794971 is an equidigital number, since it uses as much as digits as its factorization.

117794971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27114 (or 27107 counting only the distinct ones).

The product of its digits is 111132, while the sum is 46.

The square root of 117794971 is about 10853.3391635938. The cubic root of 117794971 is about 490.2025693062.

The spelling of 117794971 in words is "one hundred seventeen million, seven hundred ninety-four thousand, nine hundred seventy-one".