99436 has 6 divisors (see below), whose sum is σ = 174020. Its totient is φ = 49716.

The previous prime is 99431. The next prime is 99439. The reversal of 99436 is 63499.

99436 is nontrivially palindromic in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 99398 and 99407.

It is not an unprimeable number, because it can be changed into a prime (99431) by changing a digit.

99436 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12426 + ... + 12433.

2⁹⁹⁴³⁶ is an apocalyptic number.

It is an amenable number.

99436 is a deficient number, since it is larger than the sum of its proper divisors (74584).

99436 is a wasteful number, since it uses less digits than its factorization.

99436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24863 (or 24861 counting only the distinct ones).

The product of its digits is 5832, while the sum is 31.

The square root of 99436 is about 315.3347427735. The cubic root of 99436 is about 46.3284618978.

Subtracting from 99436 its reverse (63499), we obtain a cube (35937 = 33³).

It can be divided in two parts, 99 and 436, that added together give a palindrome (535).

The spelling of 99436 in words is "ninety-nine thousand, four hundred thirty-six".