28595893 has 12 divisors (see below), whose sum is σ = 30490668. Its totient is φ = 26812800.

The previous prime is 28595863. The next prime is 28595899. The reversal of 28595893 is 39859582.

It can be written as a sum of positive squares in 2 ways, for example, as 10804369 + 17791524 = 3287^2 + 4218^2 .

It is not a de Polignac number, because 28595893 - 2⁹ = 28595381 is a prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28595899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40443 + ... + 41143.

It is an arithmetic number, because the mean of its divisors is an integer number (2540889).

Almost surely, 2^28595893 is an apocalyptic number.

It is an amenable number.

28595893 is a deficient number, since it is larger than the sum of its proper divisors (1894775).

28595893 is a wasteful number, since it uses less digits than its factorization.

28595893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 852 (or 833 counting only the distinct ones).

The product of its digits is 777600, while the sum is 49.

The square root of 28595893 is about 5347.5127863335. The cubic root of 28595893 is about 305.7979392814.

The spelling of 28595893 in words is "twenty-eight million, five hundred ninety-five thousand, eight hundred ninety-three".