117271878 has 16 divisors (see below), whose sum is σ = 234667056. Its totient is φ = 39070080.

The previous prime is 117271873. The next prime is 117271883. The reversal of 117271878 is 878172711.

It is an interprime number because it is at equal distance from previous prime (117271873) and next prime (117271883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117271873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11250 + ... + 19002.

It is an arithmetic number, because the mean of its divisors is an integer number (14666691).

Almost surely, 2^117271878 is an apocalyptic number.

117271878 is an abundant number, since it is smaller than the sum of its proper divisors (117395178).

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

117271878 is a wasteful number, since it uses less digits than its factorization.

117271878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10279.

The product of its digits is 43904, while the sum is 42.

The square root of 117271878 is about 10829.2140989086. The cubic root of 117271878 is about 489.4758771734.

The spelling of 117271878 in words is "one hundred seventeen million, two hundred seventy-one thousand, eight hundred seventy-eight".