117678556 has 12 divisors (see below), whose sum is σ = 218051568. Its totient is φ = 55378112.

The previous prime is 117678527. The next prime is 117678593. The reversal of 117678556 is 655876711.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 865216 + ... + 865351.

It is an arithmetic number, because the mean of its divisors is an integer number (18170964).

Almost surely, 2^117678556 is an apocalyptic number.

It is an amenable number.

117678556 is a deficient number, since it is larger than the sum of its proper divisors (100373012).

117678556 is a wasteful number, since it uses less digits than its factorization.

117678556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730588 (or 1730586 counting only the distinct ones).

The product of its digits is 352800, while the sum is 46.

The square root of 117678556 is about 10847.9747418585. The cubic root of 117678556 is about 490.0410294673.

The spelling of 117678556 in words is "one hundred seventeen million, six hundred seventy-eight thousand, five hundred fifty-six".