99309913 has 8 divisors (see below), whose sum is σ = 101888640. Its totient is φ = 96738720.

The previous prime is 99309871. The next prime is 99309923. The reversal of 99309913 is 31990399.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99309913 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 99309913.

It is not an unprimeable number, because it can be changed into a prime (99309923) 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, 32956 + ... + 35842.

It is an arithmetic number, because the mean of its divisors is an integer number (12736080).

Almost surely, 2^99309913 is an apocalyptic number.

It is an amenable number.

99309913 is a deficient number, since it is larger than the sum of its proper divisors (2578727).

99309913 is a wasteful number, since it uses less digits than its factorization.

99309913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767.

The product of its (nonzero) digits is 59049, while the sum is 43.

The square root of 99309913 is about 9965.4359162056. The cubic root of 99309913 is about 463.0887178443.

The spelling of 99309913 in words is "ninety-nine million, three hundred nine thousand, nine hundred thirteen".