117284988 has 12 divisors (see below), whose sum is σ = 273665000. Its totient is φ = 39094992.

The previous prime is 117284987. The next prime is 117285017. The reversal of 117284988 is 889482711.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117284987) 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, 4886863 + ... + 4886886.

Almost surely, 2^117284988 is an apocalyptic number.

It is an amenable number.

117284988 is an abundant number, since it is smaller than the sum of its proper divisors (156380012).

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

117284988 is a wasteful number, since it uses less digits than its factorization.

117284988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9773756 (or 9773754 counting only the distinct ones).

The product of its digits is 258048, while the sum is 48.

The square root of 117284988 is about 10829.8193890757. The cubic root of 117284988 is about 489.4941162425.

The spelling of 117284988 in words is "one hundred seventeen million, two hundred eighty-four thousand, nine hundred eighty-eight".