99778752 has 84 divisors (see below), whose sum is σ = 287432496. Its totient is φ = 33093120.

The previous prime is 99778733. The next prime is 99778769. The reversal of 99778752 is 25787799.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178858 + ... + 179414.

Almost surely, 2^99778752 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 99778752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143716248).

99778752 is an abundant number, since it is smaller than the sum of its proper divisors (187653744).

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

99778752 is a wasteful number, since it uses less digits than its factorization.

99778752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 873 counting only the distinct ones).

The product of its digits is 2222640, while the sum is 54.

The square root of 99778752 is about 9988.9314743870. The cubic root of 99778752 is about 463.8163165141.

The spelling of 99778752 in words is "ninety-nine million, seven hundred seventy-eight thousand, seven hundred fifty-two".