28271058 has 24 divisors (see below), whose sum is σ = 57975504. Its totient is φ = 9190560.

The previous prime is 28271057. The next prime is 28271137. The reversal of 28271058 is 85017282.

It is not an unprimeable number, because it can be changed into a prime (28271053) 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, 8685 + ... + 11487.

It is an arithmetic number, because the mean of its divisors is an integer number (2415646).

Almost surely, 2^28271058 is an apocalyptic number.

28271058 is an abundant number, since it is smaller than the sum of its proper divisors (29704446).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28271058 is a wasteful number, since it uses less digits than its factorization.

28271058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2890 (or 2849 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 28271058 is about 5317.0535073478. The cubic root of 28271058 is about 304.6356232678.

The spelling of 28271058 in words is "twenty-eight million, two hundred seventy-one thousand, fifty-eight".