99911232 has 70 divisors (see below), whose sum is σ = 296183558. Its totient is φ = 33302016.

The previous prime is 99911197. The next prime is 99911263. The reversal of 99911232 is 23211999.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 9585216 = 9504^2 + 3096^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4453 + ... + 14820.

Almost surely, 2^99911232 is an apocalyptic number.

It is an amenable number.

99911232 is an abundant number, since it is smaller than the sum of its proper divisors (196272326).

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

99911232 is a wasteful number, since it uses less digits than its factorization.

99911232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19297 (or 19278 counting only the distinct ones).

The product of its digits is 8748, while the sum is 36.

The square root of 99911232 is about 9995.5606145929. The cubic root of 99911232 is about 464.0215011836.

The spelling of 99911232 in words is "ninety-nine million, nine hundred eleven thousand, two hundred thirty-two".