99127878 has 16 divisors (see below), whose sum is σ = 198451200. Its totient is φ = 33010056.

The previous prime is 99127877. The next prime is 99127891. The reversal of 99127878 is 87872199.

It is a self number, because there is not a number n which added to its sum of digits gives 99127878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99127871) 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, 1078 + ... + 14121.

It is an arithmetic number, because the mean of its divisors is an integer number (12403200).

Almost surely, 2^99127878 is an apocalyptic number.

99127878 is an abundant number, since it is smaller than the sum of its proper divisors (99323322).

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

99127878 is a wasteful number, since it uses less digits than its factorization.

99127878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16291.

The product of its digits is 508032, while the sum is 51.

The square root of 99127878 is about 9956.2984085452. The cubic root of 99127878 is about 462.8055976904.

The spelling of 99127878 in words is "ninety-nine million, one hundred twenty-seven thousand, eight hundred seventy-eight".