99309599 has 8 divisors (see below), whose sum is σ = 104858880. Its totient is φ = 93792600.

The previous prime is 99309577. The next prime is 99309641. The reversal of 99309599 is 99590399.

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

It is a cyclic number.

It is not a de Polignac number, because 99309599 - 2¹⁶ = 99244063 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 99309599.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99309559) 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, 1607 + ... + 14184.

It is an arithmetic number, because the mean of its divisors is an integer number (13107360).

Almost surely, 2^99309599 is an apocalyptic number.

99309599 is a deficient number, since it is larger than the sum of its proper divisors (5549281).

99309599 is a wasteful number, since it uses less digits than its factorization.

99309599 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16141.

The product of its (nonzero) digits is 885735, while the sum is 53.

The square root of 99309599 is about 9965.4201617393. The cubic root of 99309599 is about 463.0882297762.

The spelling of 99309599 in words is "ninety-nine million, three hundred nine thousand, five hundred ninety-nine".