28800099 has 12 divisors (see below), whose sum is σ = 41665312. Its totient is φ = 19170000.

The previous prime is 28800077. The next prime is 28800131. The reversal of 28800099 is 99000882.

It is not a de Polignac number, because 28800099 - 2¹² = 28796003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28800019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4629 + ... + 8889.

Almost surely, 2^28800099 is an apocalyptic number.

28800099 is a deficient number, since it is larger than the sum of its proper divisors (12865213).

28800099 is a wasteful number, since it uses less digits than its factorization.

28800099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018 (or 5015 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 28800099 is about 5366.5723697720. The cubic root of 28800099 is about 306.5241241822.

The spelling of 28800099 in words is "twenty-eight million, eight hundred thousand, ninety-nine".