28827201 has 16 divisors (see below), whose sum is σ = 41489280. Its totient is φ = 17698560.

The previous prime is 28827193. The next prime is 28827203. The reversal of 28827201 is 10272882.

It is a happy number.

It is not a de Polignac number, because 28827201 - 2³ = 28827193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28827203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32281 + ... + 33161.

It is an arithmetic number, because the mean of its divisors is an integer number (2593080).

Almost surely, 2^28827201 is an apocalyptic number.

It is an amenable number.

28827201 is a deficient number, since it is larger than the sum of its proper divisors (12662079).

28827201 is a wasteful number, since it uses less digits than its factorization.

28827201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 28827201 is about 5369.0968514267. The cubic root of 28827201 is about 306.6202443646.

The spelling of 28827201 in words is "twenty-eight million, eight hundred twenty-seven thousand, two hundred one".