99756628 has 12 divisors (see below), whose sum is σ = 174723892. Its totient is φ = 49835520.

The previous prime is 99756599. The next prime is 99756637. The reversal of 99756628 is 82665799.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70358544 + 29398084 = 8388^2 + 5422^2 .

It is a congruent number.

It is an unprimeable number.

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, 5133 + ... + 15028.

Almost surely, 2^99756628 is an apocalyptic number.

It is an amenable number.

99756628 is a deficient number, since it is larger than the sum of its proper divisors (74967264).

99756628 is a wasteful number, since it uses less digits than its factorization.

99756628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21402 (or 21400 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 52.

The square root of 99756628 is about 9987.8239872357. The cubic root of 99756628 is about 463.7820332273.

The spelling of 99756628 in words is "ninety-nine million, seven hundred fifty-six thousand, six hundred twenty-eight".