28896199 has 4 divisors (see below), whose sum is σ = 29047680. Its totient is φ = 28744720.

The previous prime is 28896191. The next prime is 28896221. The reversal of 28896199 is 99169882.

28896199 = T₁₈₂ + T₁₈₃ + ... + T₅₆₃.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28896199 - 2³ = 28896191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28896191) 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, 75454 + ... + 75835.

It is an arithmetic number, because the mean of its divisors is an integer number (7261920).

Almost surely, 2^28896199 is an apocalyptic number.

28896199 is a deficient number, since it is larger than the sum of its proper divisors (151481).

28896199 is a wasteful number, since it uses less digits than its factorization.

28896199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151480.

The product of its digits is 559872, while the sum is 52.

The square root of 28896199 is about 5375.5184866206. The cubic root of 28896199 is about 306.8646816341.

The spelling of 28896199 in words is "twenty-eight million, eight hundred ninety-six thousand, one hundred ninety-nine".