99111894 has 32 divisors (see below), whose sum is σ = 229929216. Its totient is φ = 27894240.

The previous prime is 99111893. The next prime is 99111907. The reversal of 99111894 is 49811199.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99111893) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14797 + ... + 20424.

It is an arithmetic number, because the mean of its divisors is an integer number (7185288).

Almost surely, 2^99111894 is an apocalyptic number.

99111894 is an abundant number, since it is smaller than the sum of its proper divisors (130817322).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99111894 is a wasteful number, since it uses less digits than its factorization.

99111894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35300.

The product of its digits is 23328, while the sum is 42.

The square root of 99111894 is about 9955.4956682227. The cubic root of 99111894 is about 462.7807211287.

The spelling of 99111894 in words is "ninety-nine million, one hundred eleven thousand, eight hundred ninety-four".