99636905 has 8 divisors (see below), whose sum is σ = 119625984. Its totient is φ = 79668400.

The previous prime is 99636853. The next prime is 99636907. The reversal of 99636905 is 50963699.

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

It is not a de Polignac number, because 99636905 - 2⁶ = 99636841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 99636905.

It is not an unprimeable number, because it can be changed into a prime (99636907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9110 + ... + 16800.

It is an arithmetic number, because the mean of its divisors is an integer number (14953248).

Almost surely, 2^99636905 is an apocalyptic number.

It is an amenable number.

99636905 is a deficient number, since it is larger than the sum of its proper divisors (19989079).

99636905 is a wasteful number, since it uses less digits than its factorization.

99636905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10287.

The product of its (nonzero) digits is 393660, while the sum is 47.

The square root of 99636905 is about 9981.8287402660. The cubic root of 99636905 is about 463.5964228231.

The spelling of 99636905 in words is "ninety-nine million, six hundred thirty-six thousand, nine hundred five".