99249843 has 24 divisors (see below), whose sum is σ = 167935680. Its totient is φ = 51557520.

The previous prime is 99249797. The next prime is 99249881. The reversal of 99249843 is 34894299.

It is not a de Polignac number, because 99249843 - 2²⁰ = 98201267 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 99249792 and 99249801.

It is not an unprimeable number, because it can be changed into a prime (99249743) 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 23 ways as a sum of consecutive naturals, for example, 29073 + ... + 32306.

It is an arithmetic number, because the mean of its divisors is an integer number (6997320).

Almost surely, 2^99249843 is an apocalyptic number.

99249843 is a deficient number, since it is larger than the sum of its proper divisors (68685837).

99249843 is a wasteful number, since it uses less digits than its factorization.

99249843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61407 (or 61400 counting only the distinct ones).

The product of its digits is 559872, while the sum is 48.

The square root of 99249843 is about 9962.4215429784. The cubic root of 99249843 is about 462.9953288795.

It can be divided in two parts, 99 and 249843, that added together give a palindrome (249942).

The spelling of 99249843 in words is "ninety-nine million, two hundred forty-nine thousand, eight hundred forty-three".