28559061 has 24 divisors (see below), whose sum is σ = 43059744. Its totient is φ = 18915120.

The previous prime is 28559051. The next prime is 28559081. The reversal of 28559061 is 16095582.

It is a happy number.

28559061 is a `hidden beast` number, since 2 + 8 + 5 + 590 + 61 = 666.

It is not a de Polignac number, because 28559061 - 2¹¹ = 28557013 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28559051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50995 + ... + 51551.

It is an arithmetic number, because the mean of its divisors is an integer number (1794156).

Almost surely, 2^28559061 is an apocalyptic number.

It is an amenable number.

28559061 is a deficient number, since it is larger than the sum of its proper divisors (14500683).

28559061 is an equidigital number, since it uses as much as digits as its factorization.

28559061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 28559061 is about 5344.0678326533. The cubic root of 28559061 is about 305.6665918781. Note that the first 3 decimals are identical.

The spelling of 28559061 in words is "twenty-eight million, five hundred fifty-nine thousand, sixty-one".