28065582 has 16 divisors (see below), whose sum is σ = 62368080. Its totient is φ = 9355176.

The previous prime is 28065581. The next prime is 28065593. The reversal of 28065582 is 28556082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28065581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259813 + ... + 259920.

It is an arithmetic number, because the mean of its divisors is an integer number (3898005).

Almost surely, 2^28065582 is an apocalyptic number.

28065582 is an abundant number, since it is smaller than the sum of its proper divisors (34302498).

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

28065582 is a wasteful number, since it uses less digits than its factorization.

28065582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519744 (or 519738 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 28065582 is about 5297.6959142631. The cubic root of 28065582 is about 303.8957904012.

The spelling of 28065582 in words is "twenty-eight million, sixty-five thousand, five hundred eighty-two".