99870768 has 90 divisors (see below), whose sum is σ = 288269124. Its totient is φ = 32260032.

The previous prime is 99870739. The next prime is 99870779. The reversal of 99870768 is 86707899.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 786321 + ... + 786447.

Almost surely, 2^99870768 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 99870768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144134562).

99870768 is an abundant number, since it is smaller than the sum of its proper divisors (188398356).

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

99870768 is a wasteful number, since it uses less digits than its factorization.

99870768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 99870768 is about 9993.5363110362. The cubic root of 99870768 is about 463.9588498981.

The spelling of 99870768 in words is "ninety-nine million, eight hundred seventy thousand, seven hundred sixty-eight".