28347112 has 8 divisors (see below), whose sum is σ = 53150850. Its totient is φ = 14173552.

The previous prime is 28347083. The next prime is 28347119. The reversal of 28347112 is 21174382.

It can be written as a sum of positive squares in only one way, i.e., 21659716 + 6687396 = 4654^2 + 2586^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (28347119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1771687 + ... + 1771702.

Almost surely, 2^28347112 is an apocalyptic number.

It is an amenable number.

28347112 is a deficient number, since it is larger than the sum of its proper divisors (24803738).

28347112 is a wasteful number, since it uses less digits than its factorization.

28347112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3543395 (or 3543391 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 28347112 is about 5324.2005972728. The cubic root of 28347112 is about 304.9085527151.

The spelling of 28347112 in words is "twenty-eight million, three hundred forty-seven thousand, one hundred twelve".