99878768 has 20 divisors (see below), whose sum is σ = 211107768. Its totient is φ = 45399360.

The previous prime is 99878767. The next prime is 99878773. The reversal of 99878768 is 86787899.

It is a self number, because there is not a number n which added to its sum of digits gives 99878768.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99878767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283571 + ... + 283922.

Almost surely, 2^99878768 is an apocalyptic number.

It is an amenable number.

99878768 is an abundant number, since it is smaller than the sum of its proper divisors (111229000).

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

99878768 is a wasteful number, since it uses less digits than its factorization.

99878768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567512 (or 567506 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 62.

The square root of 99878768 is about 9993.9365617358. The cubic root of 99878768 is about 463.9712378129.

The spelling of 99878768 in words is "ninety-nine million, eight hundred seventy-eight thousand, seven hundred sixty-eight".