28027071 has 12 divisors (see below), whose sum is σ = 42614520. Its totient is φ = 17701200.

The previous prime is 28027063. The next prime is 28027157. The reversal of 28027071 is 17072082.

It is not a de Polignac number, because 28027071 - 2³ = 28027063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28027031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81780 + ... + 82121.

It is an arithmetic number, because the mean of its divisors is an integer number (3551210).

Almost surely, 2^28027071 is an apocalyptic number.

28027071 is a deficient number, since it is larger than the sum of its proper divisors (14587449).

28027071 is a wasteful number, since it uses less digits than its factorization.

28027071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163926 (or 163923 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 28027071 is about 5294.0599732153. The cubic root of 28027071 is about 303.7567269760.

The spelling of 28027071 in words is "twenty-eight million, twenty-seven thousand, seventy-one".