28883171 has 4 divisors (see below), whose sum is σ = 28954200. Its totient is φ = 28812144.

The previous prime is 28883149. The next prime is 28883191. The reversal of 28883171 is 17138882.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17138882 = 2 ⋅8569441.

It is a cyclic number.

It is not a de Polignac number, because 28883171 - 2¹⁸ = 28621027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28883131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34901 + ... + 35718.

It is an arithmetic number, because the mean of its divisors is an integer number (7238550).

Almost surely, 2^28883171 is an apocalyptic number.

28883171 is a deficient number, since it is larger than the sum of its proper divisors (71029).

28883171 is an equidigital number, since it uses as much as digits as its factorization.

28883171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71028.

The product of its digits is 21504, while the sum is 38.

The square root of 28883171 is about 5374.3065599201. The cubic root of 28883171 is about 306.8185575281.

The spelling of 28883171 in words is "twenty-eight million, eight hundred eighty-three thousand, one hundred seventy-one".