28073586 has 16 divisors (see below), whose sum is σ = 56350368. Its totient is φ = 9324000.

The previous prime is 28073567. The next prime is 28073599. The reversal of 28073586 is 68537082.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6640 + ... + 10011.

It is an arithmetic number, because the mean of its divisors is an integer number (3521898).

Almost surely, 2^28073586 is an apocalyptic number.

28073586 is an abundant number, since it is smaller than the sum of its proper divisors (28276782).

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

28073586 is a wasteful number, since it uses less digits than its factorization.

28073586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16937.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 28073586 is about 5298.4512831581. The cubic root of 28073586 is about 303.9246769179.

The spelling of 28073586 in words is "twenty-eight million, seventy-three thousand, five hundred eighty-six".