99918835 has 4 divisors (see below), whose sum is σ = 119902608. Its totient is φ = 79935064.

The previous prime is 99918829. The next prime is 99918857. The reversal of 99918835 is 53881999.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53881999 = 31 ⋅1738129.

It is a cyclic number.

It is not a de Polignac number, because 99918835 - 2⁹ = 99918323 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 9991879 + ... + 9991888.

It is an arithmetic number, because the mean of its divisors is an integer number (29975652).

Almost surely, 2^99918835 is an apocalyptic number.

99918835 is a deficient number, since it is larger than the sum of its proper divisors (19983773).

99918835 is a wasteful number, since it uses less digits than its factorization.

99918835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19983772.

The product of its digits is 699840, while the sum is 52.

The square root of 99918835 is about 9995.9409261960. The cubic root of 99918835 is about 464.0332711849.

The spelling of 99918835 in words is "ninety-nine million, nine hundred eighteen thousand, eight hundred thirty-five".