28580213 has 8 divisors (see below), whose sum is σ = 30445632. Its totient is φ = 26735296.

The previous prime is 28580173. The next prime is 28580221. The reversal of 28580213 is 31208582.

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

It is a cyclic number.

It is not a de Polignac number, because 28580213 - 2¹⁰ = 28579189 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 (28580113) 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, 2195 + ... + 7872.

It is an arithmetic number, because the mean of its divisors is an integer number (3805704).

Almost surely, 2^28580213 is an apocalyptic number.

It is an amenable number.

28580213 is a deficient number, since it is larger than the sum of its proper divisors (1865419).

28580213 is a wasteful number, since it uses less digits than its factorization.

28580213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10251.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 28580213 is about 5346.0464831500. The cubic root of 28580213 is about 305.7420362845.

Adding to 28580213 its reverse (31208582), we get a palindrome (59788795).

The spelling of 28580213 in words is "twenty-eight million, five hundred eighty thousand, two hundred thirteen".