28285127 has 16 divisors (see below), whose sum is σ = 32532192. Its totient is φ = 24360960.

The previous prime is 28285109. The next prime is 28285171. The reversal of 28285127 is 72158282.

It is not a de Polignac number, because 28285127 - 2¹⁴ = 28268743 is a prime.

It is a super-2 number, since 2×28285127² = 1600096818812258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28285177) 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, 28463 + ... + 29439.

It is an arithmetic number, because the mean of its divisors is an integer number (2033262).

Almost surely, 2^28285127 is an apocalyptic number.

28285127 is a deficient number, since it is larger than the sum of its proper divisors (4247065).

28285127 is a wasteful number, since it uses less digits than its factorization.

28285127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138.

The product of its digits is 17920, while the sum is 35.

The square root of 28285127 is about 5318.3763499775. The cubic root of 28285127 is about 304.6861485296.

The spelling of 28285127 in words is "twenty-eight million, two hundred eighty-five thousand, one hundred twenty-seven".