28100485 has 16 divisors (see below), whose sum is σ = 38687616. Its totient is φ = 19194048.

The previous prime is 28100483. The next prime is 28100497. The reversal of 28100485 is 58400182.

It is a cyclic number.

It is not a de Polignac number, because 28100485 - 2¹ = 28100483 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28100483) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 8487 + ... + 11323.

It is an arithmetic number, because the mean of its divisors is an integer number (2417976).

Almost surely, 2^28100485 is an apocalyptic number.

It is an amenable number.

28100485 is a deficient number, since it is larger than the sum of its proper divisors (10587131).

28100485 is a wasteful number, since it uses less digits than its factorization.

28100485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3132.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 28100485 is about 5300.9890586569. The cubic root of 28100485 is about 304.0217154675.

The spelling of 28100485 in words is "twenty-eight million, one hundred thousand, four hundred eighty-five".