28111126 has 4 divisors (see below), whose sum is σ = 42166692. Its totient is φ = 14055562.

The previous prime is 28111103. The next prime is 28111133. The reversal of 28111126 is 62111182.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 28111097 and 28111106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7027780 + ... + 7027783.

It is an arithmetic number, because the mean of its divisors is an integer number (10541673).

Almost surely, 2^28111126 is an apocalyptic number.

28111126 is a deficient number, since it is larger than the sum of its proper divisors (14055566).

28111126 is a wasteful number, since it uses less digits than its factorization.

28111126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14055565.

The product of its digits is 192, while the sum is 22.

The square root of 28111126 is about 5301.9926442801. The cubic root of 28111126 is about 304.0600859417.

The spelling of 28111126 in words is "twenty-eight million, one hundred eleven thousand, one hundred twenty-six".