99989105 has 8 divisors (see below), whose sum is σ = 123857664. Its totient is φ = 77410800.

The previous prime is 99989101. The next prime is 99989107. The reversal of 99989105 is 50198999.

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

It is not a de Polignac number, because 99989105 - 2² = 99989101 is a prime.

It is a super-2 number, since 2×99989105² = 19995642237402050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99989101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322391 + ... + 322700.

It is an arithmetic number, because the mean of its divisors is an integer number (15482208).

Almost surely, 2^99989105 is an apocalyptic number.

It is an amenable number.

99989105 is a deficient number, since it is larger than the sum of its proper divisors (23868559).

99989105 is a wasteful number, since it uses less digits than its factorization.

99989105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645127.

The product of its (nonzero) digits is 262440, while the sum is 50.

The square root of 99989105 is about 9999.4552351616. The cubic root of 99989105 is about 464.1420260456.

The spelling of 99989105 in words is "ninety-nine million, nine hundred eighty-nine thousand, one hundred five".