28751882 has 8 divisors (see below), whose sum is σ = 43234500. Its totient is φ = 14340384.

The previous prime is 28751873. The next prime is 28751893. The reversal of 28751882 is 28815782.

It can be written as a sum of positive squares in 2 ways, for example, as 24512401 + 4239481 = 4951^2 + 2059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16757 + ... + 18392.

Almost surely, 2^28751882 is an apocalyptic number.

28751882 is a deficient number, since it is larger than the sum of its proper divisors (14482618).

28751882 is a wasteful number, since it uses less digits than its factorization.

28751882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35560.

The product of its digits is 71680, while the sum is 41.

The square root of 28751882 is about 5362.0781419148. The cubic root of 28751882 is about 306.3529681803.

The spelling of 28751882 in words is "twenty-eight million, seven hundred fifty-one thousand, eight hundred eighty-two".