99509315 has 4 divisors (see below), whose sum is σ = 119411184. Its totient is φ = 79607448.

The previous prime is 99509299. The next prime is 99509329. The reversal of 99509315 is 51390599.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99509315 - 2⁴ = 99509299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9950927 + ... + 9950936.

It is an arithmetic number, because the mean of its divisors is an integer number (29852796).

Almost surely, 2^99509315 is an apocalyptic number.

99509315 is a deficient number, since it is larger than the sum of its proper divisors (19901869).

99509315 is a wasteful number, since it uses less digits than its factorization.

99509315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19901868.

The product of its (nonzero) digits is 54675, while the sum is 41.

The square root of 99509315 is about 9975.4355794622. The cubic root of 99509315 is about 463.3984522223.

The spelling of 99509315 in words is "ninety-nine million, five hundred nine thousand, three hundred fifteen".