28983127 has 4 divisors (see below), whose sum is σ = 29012536. Its totient is φ = 28953720.

The previous prime is 28983121. The next prime is 28983131. The reversal of 28983127 is 72138982.

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 28983127 - 2¹⁵ = 28950359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28983127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28983121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13173 + ... + 15214.

It is an arithmetic number, because the mean of its divisors is an integer number (7253134).

Almost surely, 2^28983127 is an apocalyptic number.

28983127 is a deficient number, since it is larger than the sum of its proper divisors (29409).

28983127 is a wasteful number, since it uses less digits than its factorization.

28983127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29408.

The product of its digits is 48384, while the sum is 40.

The square root of 28983127 is about 5383.5979604722. The cubic root of 28983127 is about 307.1720857193.

The spelling of 28983127 in words is "twenty-eight million, nine hundred eighty-three thousand, one hundred twenty-seven".