99438853 has 4 divisors (see below), whose sum is σ = 99487648. Its totient is φ = 99390060.

The previous prime is 99438851. The next prime is 99438863. The reversal of 99438853 is 35883499.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35883499 = 1013 ⋅35423.

It is a cyclic number.

It is not a de Polignac number, because 99438853 - 2¹ = 99438851 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99438797 and 99438806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99438851) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21201 + ... + 25462.

It is an arithmetic number, because the mean of its divisors is an integer number (24871912).

Almost surely, 2^99438853 is an apocalyptic number.

It is an amenable number.

99438853 is a deficient number, since it is larger than the sum of its proper divisors (48795).

99438853 is a wasteful number, since it uses less digits than its factorization.

99438853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48794.

The product of its digits is 933120, while the sum is 49.

The square root of 99438853 is about 9971.9031784309. The cubic root of 99438853 is about 463.2890497619.

The spelling of 99438853 in words is "ninety-nine million, four hundred thirty-eight thousand, eight hundred fifty-three".