99916 has 6 divisors (see below), whose sum is σ = 174860. Its totient is φ = 49956.

The previous prime is 99907. The next prime is 99923. The reversal of 99916 is 61999.

99916 = T₁₂₃ + T₁₂₄ + ... + T₁₃₄.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12486 + ... + 12493.

2⁹⁹⁹¹⁶ is an apocalyptic number.

It is an amenable number.

99916 is a deficient number, since it is larger than the sum of its proper divisors (74944).

99916 is a wasteful number, since it uses less digits than its factorization.

99916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24983 (or 24981 counting only the distinct ones).

The product of its digits is 4374, while the sum is 34.

The square root of 99916 is about 316.0949224521. The cubic root of 99916 is about 46.4028882467.

The spelling of 99916 in words is "ninety-nine thousand, nine hundred sixteen".