117797872 has 20 divisors (see below), whose sum is σ = 240246280. Its totient is φ = 55798848.

The previous prime is 117797831. The next prime is 117797873. The reversal of 117797872 is 278797711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117797873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193443 + ... + 194050.

It is an arithmetic number, because the mean of its divisors is an integer number (12012314).

Almost surely, 2^117797872 is an apocalyptic number.

It is an amenable number.

117797872 is an abundant number, since it is smaller than the sum of its proper divisors (122448408).

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

117797872 is a wasteful number, since it uses less digits than its factorization.

117797872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387520 (or 387514 counting only the distinct ones).

The product of its digits is 345744, while the sum is 49.

The square root of 117797872 is about 10853.4728082766. The cubic root of 117797872 is about 490.2065934338.

The spelling of 117797872 in words is "one hundred seventeen million, seven hundred ninety-seven thousand, eight hundred seventy-two".