117173780 has 12 divisors (see below), whose sum is σ = 246064980. Its totient is φ = 46869504.

The previous prime is 117173767. The next prime is 117173807. The reversal of 117173780 is 87371711.

It can be written as a sum of positive squares in 2 ways, for example, as 27227524 + 89946256 = 5218^2 + 9484^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117173780.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2929325 + ... + 2929364.

It is an arithmetic number, because the mean of its divisors is an integer number (20505415).

Almost surely, 2^117173780 is an apocalyptic number.

117173780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

117173780 is an abundant number, since it is smaller than the sum of its proper divisors (128891200).

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

117173780 is a wasteful number, since it uses less digits than its factorization.

117173780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5858698 (or 5858696 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 35.

The square root of 117173780 is about 10824.6838291010. The cubic root of 117173780 is about 489.3393568064.

The spelling of 117173780 in words is "one hundred seventeen million, one hundred seventy-three thousand, seven hundred eighty".