99978752 has 20 divisors (see below), whose sum is σ = 199763256. Its totient is φ = 49989120.

The previous prime is 99978743. The next prime is 99978793. The reversal of 99978752 is 25787999.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97124 + ... + 98147.

Almost surely, 2^99978752 is an apocalyptic number.

It is an amenable number.

99978752 is a deficient number, since it is larger than the sum of its proper divisors (99784504).

99978752 is an equidigital number, since it uses as much as digits as its factorization.

99978752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195289 (or 195273 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 56.

The square root of 99978752 is about 9998.9375435593. The cubic root of 99978752 is about 464.1260062061.

The spelling of 99978752 in words is "ninety-nine million, nine hundred seventy-eight thousand, seven hundred fifty-two".