28580061 has 8 divisors (see below), whose sum is σ = 38153440. Its totient is φ = 19030032.

The previous prime is 28580023. The next prime is 28580063. The reversal of 28580061 is 16008582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28580061 - 2⁶ = 28579997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28580063) 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 7 ways as a sum of consecutive naturals, for example, 2746 + ... + 8043.

It is an arithmetic number, because the mean of its divisors is an integer number (4769180).

Almost surely, 2^28580061 is an apocalyptic number.

It is an amenable number.

28580061 is a deficient number, since it is larger than the sum of its proper divisors (9573379).

28580061 is a wasteful number, since it uses less digits than its factorization.

28580061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11675.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 28580061 is about 5346.0322670182. The cubic root of 28580061 is about 305.7414942676.

The spelling of 28580061 in words is "twenty-eight million, five hundred eighty thousand, sixty-one".