117006978 has 32 divisors (see below), whose sum is σ = 268727040. Its totient is φ = 33590160.

The previous prime is 117006947. The next prime is 117007001. The reversal of 117006978 is 879600711.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 15 ways as a sum of consecutive naturals, for example, 45400 + ... + 47907.

It is an arithmetic number, because the mean of its divisors is an integer number (8397720).

Almost surely, 2^117006978 is an apocalyptic number.

117006978 is an abundant number, since it is smaller than the sum of its proper divisors (151720062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117006978 is a wasteful number, since it uses less digits than its factorization.

117006978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93342.

The product of its (nonzero) digits is 21168, while the sum is 39.

The square root of 117006978 is about 10816.9763797468. The cubic root of 117006978 is about 489.1070478796.

The spelling of 117006978 in words is "one hundred seventeen million, six thousand, nine hundred seventy-eight".