99855628 has 12 divisors (see below), whose sum is σ = 175921200. Its totient is φ = 49592432.

The previous prime is 99855617. The next prime is 99855629. The reversal of 99855628 is 82655899.

It is a super-2 number, since 2×99855628² = 19942292886548768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (99855629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83176 + ... + 84367.

It is an arithmetic number, because the mean of its divisors is an integer number (14660100).

Almost surely, 2^99855628 is an apocalyptic number.

It is an amenable number.

99855628 is a deficient number, since it is larger than the sum of its proper divisors (76065572).

99855628 is a wasteful number, since it uses less digits than its factorization.

99855628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167696 (or 167694 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 52.

The square root of 99855628 is about 9992.7787927083. The cubic root of 99855628 is about 463.9354039585.

The spelling of 99855628 in words is "ninety-nine million, eight hundred fifty-five thousand, six hundred twenty-eight".