117678814 has 16 divisors (see below), whose sum is σ = 194368896. Its totient is φ = 52989400.

The previous prime is 117678809. The next prime is 117678817. The reversal of 117678814 is 418876711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117678817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22642 + ... + 27349.

It is an arithmetic number, because the mean of its divisors is an integer number (12148056).

Almost surely, 2^117678814 is an apocalyptic number.

117678814 is a deficient number, since it is larger than the sum of its proper divisors (76690082).

117678814 is a wasteful number, since it uses less digits than its factorization.

117678814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50111.

The product of its digits is 75264, while the sum is 43.

The square root of 117678814 is about 10847.9866334726. The cubic root of 117678814 is about 490.0413875912.

The spelling of 117678814 in words is "one hundred seventeen million, six hundred seventy-eight thousand, eight hundred fourteen".