99609916 has 12 divisors (see below), whose sum is σ = 199219888. Its totient is φ = 42689952.

The previous prime is 99609899. The next prime is 99609929. The reversal of 99609916 is 61990699.

It is a happy number.

99609916 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 99609916.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1778721 + ... + 1778776.

Almost surely, 2^99609916 is an apocalyptic number.

It is an amenable number.

99609916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

99609916 is a wasteful number, since it uses less digits than its factorization.

99609916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557508 (or 3557506 counting only the distinct ones).

The product of its (nonzero) digits is 236196, while the sum is 49.

The square root of 99609916 is about 9980.4767421201. The cubic root of 99609916 is about 463.5545603768.

The spelling of 99609916 in words is "ninety-nine million, six hundred nine thousand, nine hundred sixteen".