117961684 has 12 divisors (see below), whose sum is σ = 206550484. Its totient is φ = 58947264.

The previous prime is 117961673. The next prime is 117961777. The reversal of 117961684 is 486169711.

It can be written as a sum of positive squares in 2 ways, for example, as 65254084 + 52707600 = 8078^2 + 7260^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 117961684.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 574 + ... + 15370.

Almost surely, 2^117961684 is an apocalyptic number.

It is an amenable number.

117961684 is a deficient number, since it is larger than the sum of its proper divisors (88588800).

117961684 is a wasteful number, since it uses less digits than its factorization.

117961684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16794 (or 16792 counting only the distinct ones).

The product of its digits is 72576, while the sum is 43.

The square root of 117961684 is about 10861.0167111555. The cubic root of 117961684 is about 490.4337184426.

The spelling of 117961684 in words is "one hundred seventeen million, nine hundred sixty-one thousand, six hundred eighty-four".