99354609 has 24 divisors (see below), whose sum is σ = 149970600. Its totient is φ = 63302400.

The previous prime is 99354599. The next prime is 99354611. The reversal of 99354609 is 90645399.

It is a happy number.

99354609 is a `hidden beast` number, since 9 + 9 + 35 + 4 + 609 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 58752225 + 40602384 = 7665^2 + 6372^2 .

It is not a de Polignac number, because 99354609 - 2¹⁹ = 98830321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99354649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24477 + ... + 28245.

It is an arithmetic number, because the mean of its divisors is an integer number (6248775).

Almost surely, 2^99354609 is an apocalyptic number.

It is an amenable number.

99354609 is a deficient number, since it is larger than the sum of its proper divisors (50615991).

99354609 is a wasteful number, since it uses less digits than its factorization.

99354609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905 (or 3902 counting only the distinct ones).

The product of its (nonzero) digits is 262440, while the sum is 45.

The square root of 99354609 is about 9967.6782151111. The cubic root of 99354609 is about 463.1581808962.

The spelling of 99354609 in words is "ninety-nine million, three hundred fifty-four thousand, six hundred nine".