99518393 has 8 divisors (see below), whose sum is σ = 107251200. Its totient is φ = 91796688.

The previous prime is 99518381. The next prime is 99518399. The reversal of 99518393 is 39381599.

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 99518393 - 2²⁰ = 98469817 is a prime.

It is a super-3 number, since 3×99518393³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99518399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33128 + ... + 36006.

It is an arithmetic number, because the mean of its divisors is an integer number (13406400).

Almost surely, 2^99518393 is an apocalyptic number.

It is an amenable number.

99518393 is a deficient number, since it is larger than the sum of its proper divisors (7732807).

99518393 is a wasteful number, since it uses less digits than its factorization.

99518393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5551.

The product of its digits is 262440, while the sum is 47.

The square root of 99518393 is about 9975.8905868098. The cubic root of 99518393 is about 463.4125433762.

The spelling of 99518393 in words is "ninety-nine million, five hundred eighteen thousand, three hundred ninety-three".