99509313 has 16 divisors (see below), whose sum is σ = 140887296. Its totient is φ = 62257920.

The previous prime is 99509299. The next prime is 99509329. The reversal of 99509313 is 31390599.

It is not a de Polignac number, because 99509313 - 2⁴ = 99509297 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99509363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16408 + ... + 21638.

It is an arithmetic number, because the mean of its divisors is an integer number (8805456).

Almost surely, 2^99509313 is an apocalyptic number.

It is an amenable number.

99509313 is a deficient number, since it is larger than the sum of its proper divisors (41377983).

99509313 is a wasteful number, since it uses less digits than its factorization.

99509313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5624.

The product of its (nonzero) digits is 32805, while the sum is 39.

The square root of 99509313 is about 9975.4354792159. The cubic root of 99509313 is about 463.3984491177.

The spelling of 99509313 in words is "ninety-nine million, five hundred nine thousand, three hundred thirteen".