99891192 has 16 divisors (see below), whose sum is σ = 249728040. Its totient is φ = 33297056.

The previous prime is 99891191. The next prime is 99891251. The reversal of 99891192 is 29119899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99891191) 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 3 ways as a sum of consecutive naturals, for example, 2081043 + ... + 2081090.

Almost surely, 2^99891192 is an apocalyptic number.

It is an amenable number.

99891192 is an abundant number, since it is smaller than the sum of its proper divisors (149836848).

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

99891192 is a wasteful number, since it uses less digits than its factorization.

99891192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162142 (or 4162138 counting only the distinct ones).

The product of its digits is 104976, while the sum is 48.

The square root of 99891192 is about 9994.5581192967. The cubic root of 99891192 is about 463.9904749333.

The spelling of 99891192 in words is "ninety-nine million, eight hundred ninety-one thousand, one hundred ninety-two".