117671858 has 16 divisors (see below), whose sum is σ = 187316064. Its totient is φ = 55248960.

The previous prime is 117671857. The next prime is 117671893. The reversal of 117671858 is 858176711.

It is not an unprimeable number, because it can be changed into a prime (117671857) 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 7 ways as a sum of consecutive naturals, for example, 12173 + ... + 19583.

It is an arithmetic number, because the mean of its divisors is an integer number (11707254).

Almost surely, 2^117671858 is an apocalyptic number.

117671858 is a deficient number, since it is larger than the sum of its proper divisors (69644206).

117671858 is a wasteful number, since it uses less digits than its factorization.

117671858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7897.

The product of its digits is 94080, while the sum is 44.

The square root of 117671858 is about 10847.6660162452. Note that the first 3 decimals coincide. The cubic root of 117671858 is about 490.0317319447.

The spelling of 117671858 in words is "one hundred seventeen million, six hundred seventy-one thousand, eight hundred fifty-eight".