99609009 has 8 divisors (see below), whose sum is σ = 134181600. Its totient is φ = 65721216.

The previous prime is 99608981. The next prime is 99609043. The reversal of 99609009 is 90090699.

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

It is not a de Polignac number, because 99609009 - 2⁸ = 99608753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99609079) 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, 170859 + ... + 171440.

It is an arithmetic number, because the mean of its divisors is an integer number (16772700).

Almost surely, 2^99609009 is an apocalyptic number.

It is an amenable number.

99609009 is a deficient number, since it is larger than the sum of its proper divisors (34572591).

99609009 is a wasteful number, since it uses less digits than its factorization.

99609009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342399.

The product of its (nonzero) digits is 39366, while the sum is 42.

The square root of 99609009 is about 9980.4313033055. The cubic root of 99609009 is about 463.5531534043.

The spelling of 99609009 in words is "ninety-nine million, six hundred nine thousand, nine".