99684432 has 60 divisors (see below), whose sum is σ = 289321760. Its totient is φ = 33226848.

The previous prime is 99684367. The next prime is 99684433. The reversal of 99684432 is 23448699.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99684433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8932 + ... + 16707.

Almost surely, 2^99684432 is an apocalyptic number.

It is an amenable number.

99684432 is an abundant number, since it is smaller than the sum of its proper divisors (189637328).

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

99684432 is a wasteful number, since it uses less digits than its factorization.

99684432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25662 (or 25644 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 99684432 is about 9984.2091324251. The cubic root of 99684432 is about 463.6701232416.

It can be divided in two parts, 9968 and 4432, that added together give a square (14400 = 120²).

The spelling of 99684432 in words is "ninety-nine million, six hundred eighty-four thousand, four hundred thirty-two".