99873432 has 32 divisors (see below), whose sum is σ = 277426800. Its totient is φ = 33291072.

The previous prime is 99873407. The next prime is 99873437. The reversal of 99873432 is 23437899.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99873437) 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, 230973 + ... + 231404.

Almost surely, 2^99873432 is an apocalyptic number.

It is an amenable number.

99873432 is an abundant number, since it is smaller than the sum of its proper divisors (177553368).

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

99873432 is a wasteful number, since it uses less digits than its factorization.

99873432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462392 (or 462382 counting only the distinct ones).

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

The square root of 99873432 is about 9993.6695962994. The cubic root of 99873432 is about 463.9629751471.

The spelling of 99873432 in words is "ninety-nine million, eight hundred seventy-three thousand, four hundred thirty-two".