28294845 has 16 divisors (see below), whose sum is σ = 46127232. Its totient is φ = 14805440.

The previous prime is 28294843. The next prime is 28294859. The reversal of 28294845 is 54849282.

It is not a de Polignac number, because 28294845 - 2¹ = 28294843 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28294797 and 28294806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28294843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17001 + ... + 18590.

It is an arithmetic number, because the mean of its divisors is an integer number (2882952).

Almost surely, 2^28294845 is an apocalyptic number.

It is an amenable number.

28294845 is a deficient number, since it is larger than the sum of its proper divisors (17832387).

28294845 is a wasteful number, since it uses less digits than its factorization.

28294845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35652.

The product of its digits is 184320, while the sum is 42.

The square root of 28294845 is about 5319.2898962174. The cubic root of 28294845 is about 304.7210384909.

The spelling of 28294845 in words is "twenty-eight million, two hundred ninety-four thousand, eight hundred forty-five".