99687200 has 54 divisors (see below), whose sum is σ = 244052739. Its totient is φ = 39761920.

The previous prime is 99687199. The next prime is 99687241. The reversal of 99687200 is 278699.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 5 ways, for example, as 27164944 + 72522256 = 5212^2 + 8516^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7060.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 282224 + ... + 282576.

Almost surely, 2^99687200 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 99687200

99687200 is an abundant number, since it is smaller than the sum of its proper divisors (144365539).

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

99687200 is an equidigital number, since it uses as much as digits as its factorization.

99687200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726 (or 360 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 99687200 is about 9984.3477503541. The cubic root of 99687200 is about 463.6744148747.

The spelling of 99687200 in words is "ninety-nine million, six hundred eighty-seven thousand, two hundred".