99909105 has 16 divisors (see below), whose sum is σ = 160088640. Its totient is φ = 53206848.

The previous prime is 99909083. The next prime is 99909107. The reversal of 99909105 is 50190999.

It is not a de Polignac number, because 99909105 - 2¹¹ = 99907057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99909107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6579 + ... + 15591.

It is an arithmetic number, because the mean of its divisors is an integer number (10005540).

Almost surely, 2^99909105 is an apocalyptic number.

It is an amenable number.

99909105 is a deficient number, since it is larger than the sum of its proper divisors (60179535).

99909105 is a wasteful number, since it uses less digits than its factorization.

99909105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9760.

The product of its (nonzero) digits is 32805, while the sum is 42.

The square root of 99909105 is about 9995.4542167928. The cubic root of 99909105 is about 464.0182083248.

The spelling of 99909105 in words is "ninety-nine million, nine hundred nine thousand, one hundred five".