28359859 has 18 divisors (see below), whose sum is σ = 33154772. Its totient is φ = 24235200.

The previous prime is 28359853. The next prime is 28359887. The reversal of 28359859 is 95895382.

It is not a de Polignac number, because 28359859 - 2⁹ = 28359347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28359853) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34564 + ... + 35374.

Almost surely, 2^28359859 is an apocalyptic number.

28359859 is a deficient number, since it is larger than the sum of its proper divisors (4794913).

28359859 is a wasteful number, since it uses less digits than its factorization.

28359859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867 (or 839 counting only the distinct ones).

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

The square root of 28359859 is about 5325.3975438459. The cubic root of 28359859 is about 304.9542491620.

The spelling of 28359859 in words is "twenty-eight million, three hundred fifty-nine thousand, eight hundred fifty-nine".