99433872 has 80 divisors (see below), whose sum is σ = 286678080. Its totient is φ = 32997888.

The previous prime is 99433849. The next prime is 99433877. The reversal of 99433872 is 27833499.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99433877) 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, 145243 + ... + 145925.

It is an arithmetic number, because the mean of its divisors is an integer number (3583476).

Almost surely, 2^99433872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99433872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143339040).

99433872 is an abundant number, since it is smaller than the sum of its proper divisors (187244208).

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

99433872 is a wasteful number, since it uses less digits than its factorization.

99433872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037 (or 1025 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 99433872 is about 9971.6534235803. The cubic root of 99433872 is about 463.2813140824.

The spelling of 99433872 in words is "ninety-nine million, four hundred thirty-three thousand, eight hundred seventy-two".