28658773 has 16 divisors (see below), whose sum is σ = 34001856. Its totient is φ = 23811840.

The previous prime is 28658771. The next prime is 28658779. The reversal of 28658773 is 37785682.

It is not a de Polignac number, because 28658773 - 2¹ = 28658771 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28658771) 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 15 ways as a sum of consecutive naturals, for example, 14365 + ... + 16237.

It is an arithmetic number, because the mean of its divisors is an integer number (2125116).

Almost surely, 2^28658773 is an apocalyptic number.

It is an amenable number.

28658773 is a deficient number, since it is larger than the sum of its proper divisors (5343083).

28658773 is a wasteful number, since it uses less digits than its factorization.

28658773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004.

The product of its digits is 564480, while the sum is 46.

The square root of 28658773 is about 5353.3889266520. The cubic root of 28658773 is about 306.0219166383.

The spelling of 28658773 in words is "twenty-eight million, six hundred fifty-eight thousand, seven hundred seventy-three".