99108986 has 8 divisors (see below), whose sum is σ = 149085684. Its totient is φ = 49413760.

The previous prime is 99108973. The next prime is 99108991. The reversal of 99108986 is 68980199.

It can be written as a sum of positive squares in 2 ways, for example, as 95667961 + 3441025 = 9781^2 + 1855^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×99108986² = 19645182211896392, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69485 + ... + 70896.

Almost surely, 2^99108986 is an apocalyptic number.

99108986 is a deficient number, since it is larger than the sum of its proper divisors (49976698).

99108986 is a wasteful number, since it uses less digits than its factorization.

99108986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140736.

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 99108986 is about 9955.3496171656. The cubic root of 99108986 is about 462.7761950003.

The spelling of 99108986 in words is "ninety-nine million, one hundred eight thousand, nine hundred eighty-six".