99684117 has 24 divisors (see below), whose sum is σ = 156045344. Its totient is φ = 60956064.

The previous prime is 99684113. The next prime is 99684163. The reversal of 99684117 is 71148699.

It is a happy number.

It is not a de Polignac number, because 99684117 - 2² = 99684113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99684113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16458 + ... + 21684.

Almost surely, 2^99684117 is an apocalyptic number.

It is an amenable number.

99684117 is a deficient number, since it is larger than the sum of its proper divisors (56361227).

99684117 is a wasteful number, since it uses less digits than its factorization.

99684117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5409 (or 5406 counting only the distinct ones).

The product of its digits is 108864, while the sum is 45.

The square root of 99684117 is about 9984.1933575026. The cubic root of 99684117 is about 463.6696348463.

The spelling of 99684117 in words is "ninety-nine million, six hundred eighty-four thousand, one hundred seventeen".