28052706 has 32 divisors (see below), whose sum is σ = 63184896. Its totient is φ = 8226000.

The previous prime is 28052681. The next prime is 28052747. The reversal of 28052706 is 60725082.

28052706 = T₂₂₃ + T₂₂₄ + ... + T₅₆₃.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 4810 + ... + 8901.

It is an arithmetic number, because the mean of its divisors is an integer number (1974528).

Almost surely, 2^28052706 is an apocalyptic number.

28052706 is an abundant number, since it is smaller than the sum of its proper divisors (35132190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28052706 is a wasteful number, since it uses less digits than its factorization.

28052706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13758.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 28052706 is about 5296.4805295592. The cubic root of 28052706 is about 303.8493092610.

Adding to 28052706 its reverse (60725082), we get a palindrome (88777788).

The spelling of 28052706 in words is "twenty-eight million, fifty-two thousand, seven hundred six".