28583489 has 8 divisors (see below), whose sum is σ = 31259520. Its totient is φ = 25920400.

The previous prime is 28583479. The next prime is 28583497. The reversal of 28583489 is 98438582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28583489 - 2¹² = 28579393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28583419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1727 + ... + 7755.

It is an arithmetic number, because the mean of its divisors is an integer number (3907440).

Almost surely, 2^28583489 is an apocalyptic number.

It is an amenable number.

28583489 is a deficient number, since it is larger than the sum of its proper divisors (2676031).

28583489 is a wasteful number, since it uses less digits than its factorization.

28583489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6471.

The product of its digits is 552960, while the sum is 47.

The square root of 28583489 is about 5346.3528690127. The cubic root of 28583489 is about 305.7537177071.

The spelling of 28583489 in words is "twenty-eight million, five hundred eighty-three thousand, four hundred eighty-nine".