28127253 has 16 divisors (see below), whose sum is σ = 46757376. Its totient is φ = 14611440.

The previous prime is 28127251. The next prime is 28127263. The reversal of 28127253 is 35272182.

It is not a de Polignac number, because 28127253 - 2¹ = 28127251 is a prime.

It is a super-2 number, since 2×28127253² = 1582284722652018, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28127253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28127251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60651 + ... + 61112.

It is an arithmetic number, because the mean of its divisors is an integer number (2922336).

Almost surely, 2^28127253 is an apocalyptic number.

It is an amenable number.

28127253 is a deficient number, since it is larger than the sum of its proper divisors (18630123).

28127253 is a wasteful number, since it uses less digits than its factorization.

28127253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121784.

The product of its digits is 6720, while the sum is 30.

The square root of 28127253 is about 5303.5132695224. The cubic root of 28127253 is about 304.1182199773.

Subtracting 28127253 from its reverse (35272182), we obtain a square (7144929 = 2673²).

The spelling of 28127253 in words is "twenty-eight million, one hundred twenty-seven thousand, two hundred fifty-three".