117997212 has 24 divisors (see below), whose sum is σ = 278002816. Its totient is φ = 38950128.

The previous prime is 117997211. The next prime is 117997219. The reversal of 117997212 is 212799711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117997211) 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, 46498 + ... + 48969.

Almost surely, 2^117997212 is an apocalyptic number.

117997212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117997212 is an abundant number, since it is smaller than the sum of its proper divisors (160005604).

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

117997212 is a wasteful number, since it uses less digits than its factorization.

117997212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95577 (or 95575 counting only the distinct ones).

The product of its digits is 15876, while the sum is 39.

The square root of 117997212 is about 10862.6521623405. The cubic root of 117997212 is about 490.4829501919.

The spelling of 117997212 in words is "one hundred seventeen million, nine hundred ninety-seven thousand, two hundred twelve".