99873111 has 8 divisors (see below), whose sum is σ = 143407600. Its totient is φ = 61460352.

The previous prime is 99873097. The next prime is 99873119. The reversal of 99873111 is 11137899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99873111 - 2¹¹ = 99871063 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 2560849 = 99873111 / (9 + 9 + 8 + 7 + 3 + 1 + 1 + 1).

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 99873111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99873119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1280386 + ... + 1280463.

It is an arithmetic number, because the mean of its divisors is an integer number (17925950).

Almost surely, 2^99873111 is an apocalyptic number.

99873111 is a deficient number, since it is larger than the sum of its proper divisors (43534489).

99873111 is a wasteful number, since it uses less digits than its factorization.

99873111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560865.

The product of its digits is 13608, while the sum is 39.

The square root of 99873111 is about 9993.6535361198. The cubic root of 99873111 is about 463.9624780771.

The spelling of 99873111 in words is "ninety-nine million, eight hundred seventy-three thousand, one hundred eleven".