28051027 has 4 divisors (see below), whose sum is σ = 28193616. Its totient is φ = 27908440.

The previous prime is 28050991. The next prime is 28051031. The reversal of 28051027 is 72015082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72015082 = 2 ⋅36007541.

It is a cyclic number.

It is not a de Polignac number, because 28051027 - 2¹⁵ = 28018259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28050992 and 28051010.

It is not an unprimeable number, because it can be changed into a prime (28051097) 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 3 ways as a sum of consecutive naturals, for example, 70999 + ... + 71392.

It is an arithmetic number, because the mean of its divisors is an integer number (7048404).

Almost surely, 2^28051027 is an apocalyptic number.

28051027 is a deficient number, since it is larger than the sum of its proper divisors (142589).

28051027 is a wasteful number, since it uses less digits than its factorization.

28051027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142588.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 28051027 is about 5296.3220257080. The cubic root of 28051027 is about 303.8432471819.

The spelling of 28051027 in words is "twenty-eight million, fifty-one thousand, twenty-seven".