99138883 has 4 divisors (see below), whose sum is σ = 104970600. Its totient is φ = 93307168.

The previous prime is 99138881. The next prime is 99138911. The reversal of 99138883 is 38883199.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38883199 = 17 ⋅2287247.

It is a cyclic number.

It is not a de Polignac number, because 99138883 - 2¹ = 99138881 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99138881) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2915833 + ... + 2915866.

It is an arithmetic number, because the mean of its divisors is an integer number (26242650).

Almost surely, 2^99138883 is an apocalyptic number.

99138883 is a deficient number, since it is larger than the sum of its proper divisors (5831717).

99138883 is a wasteful number, since it uses less digits than its factorization.

99138883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831716.

The product of its digits is 373248, while the sum is 49.

The square root of 99138883 is about 9956.8510584421. The cubic root of 99138883 is about 462.8227236737.

The spelling of 99138883 in words is "ninety-nine million, one hundred thirty-eight thousand, eight hundred eighty-three".