99436818 has 32 divisors (see below), whose sum is σ = 216268416. Its totient is φ = 30296448.

The previous prime is 99436801. The next prime is 99436837. The reversal of 99436818 is 81863499.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1846 + ... + 14222.

It is an arithmetic number, because the mean of its divisors is an integer number (6758388).

Almost surely, 2^99436818 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99436818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108134208).

99436818 is an abundant number, since it is smaller than the sum of its proper divisors (116831598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99436818 is a wasteful number, since it uses less digits than its factorization.

99436818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12498.

The product of its digits is 373248, while the sum is 48.

The square root of 99436818 is about 9971.8011412182. The cubic root of 99436818 is about 463.2858893619.

It can be divided in two parts, 9943 and 6818, that added together give a palindrome (16761).

The spelling of 99436818 in words is "ninety-nine million, four hundred thirty-six thousand, eight hundred eighteen".