117667878 has 16 divisors (see below), whose sum is σ = 242927616. Its totient is φ = 37957320.

The previous prime is 117667873. The next prime is 117667883. The reversal of 117667878 is 878766711.

It is an interprime number because it is at equal distance from previous prime (117667873) and next prime (117667883).

It is a self number, because there is not a number n which added to its sum of digits gives 117667878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117667873) 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, 316126 + ... + 316497.

It is an arithmetic number, because the mean of its divisors is an integer number (15182976).

Almost surely, 2^117667878 is an apocalyptic number.

117667878 is an abundant number, since it is smaller than the sum of its proper divisors (125259738).

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

117667878 is a wasteful number, since it uses less digits than its factorization.

117667878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632659.

The product of its digits is 790272, while the sum is 51.

The square root of 117667878 is about 10847.4825650932. The cubic root of 117667878 is about 490.0262071225.

The spelling of 117667878 in words is "one hundred seventeen million, six hundred sixty-seven thousand, eight hundred seventy-eight".