28982589 has 4 divisors (see below), whose sum is σ = 38643456. Its totient is φ = 19321724.

The previous prime is 28982567. The next prime is 28982623. The reversal of 28982589 is 98528982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28982589 - 2⁵ = 28982557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28982519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4830429 + ... + 4830434.

It is an arithmetic number, because the mean of its divisors is an integer number (9660864).

Almost surely, 2^28982589 is an apocalyptic number.

It is an amenable number.

28982589 is a deficient number, since it is larger than the sum of its proper divisors (9660867).

28982589 is an equidigital number, since it uses as much as digits as its factorization.

28982589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9660866.

The product of its digits is 829440, while the sum is 51.

The square root of 28982589 is about 5383.5479936562. The cubic root of 28982589 is about 307.1701850778.

The spelling of 28982589 in words is "twenty-eight million, nine hundred eighty-two thousand, five hundred eighty-nine".