28589433 has 16 divisors (see below), whose sum is σ = 40615680. Its totient is φ = 17835984.

The previous prime is 28589417. The next prime is 28589441. The reversal of 28589433 is 33498582.

It is not a de Polignac number, because 28589433 - 2⁴ = 28589417 is a prime.

It is a super-2 number, since 2×28589433² = 1634711358522978, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28589413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1710 + ... + 7752.

It is an arithmetic number, because the mean of its divisors is an integer number (2538480).

Almost surely, 2^28589433 is an apocalyptic number.

It is an amenable number.

28589433 is a deficient number, since it is larger than the sum of its proper divisors (12026247).

28589433 is a wasteful number, since it uses less digits than its factorization.

28589433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148.

The product of its digits is 207360, while the sum is 42.

The square root of 28589433 is about 5346.9087330906. The cubic root of 28589433 is about 305.7749102930.

The spelling of 28589433 in words is "twenty-eight million, five hundred eighty-nine thousand, four hundred thirty-three".