28871882 has 32 divisors (see below), whose sum is σ = 50041152. Its totient is φ = 12374784.

The previous prime is 28871873. The next prime is 28871897. The reversal of 28871882 is 28817882.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36293 + ... + 37079.

It is an arithmetic number, because the mean of its divisors is an integer number (1563786).

Almost surely, 2^28871882 is an apocalyptic number.

28871882 is a deficient number, since it is larger than the sum of its proper divisors (21169270).

28871882 is a wasteful number, since it uses less digits than its factorization.

28871882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its digits is 114688, while the sum is 44.

The square root of 28871882 is about 5373.2561822418. The cubic root of 28871882 is about 306.7785789300.

The spelling of 28871882 in words is "twenty-eight million, eight hundred seventy-one thousand, eight hundred eighty-two".