28489562 has 16 divisors (see below), whose sum is σ = 43637832. Its totient is φ = 13945920.

The previous prime is 28489541. The next prime is 28489577. The reversal of 28489562 is 26598482.

It can be written as a sum of positive squares in 4 ways, for example, as 23609881 + 4879681 = 4859^2 + 2209^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35348 + ... + 36144.

Almost surely, 2^28489562 is an apocalyptic number.

28489562 is a deficient number, since it is larger than the sum of its proper divisors (15148270).

28489562 is a wasteful number, since it uses less digits than its factorization.

28489562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153.

The product of its digits is 276480, while the sum is 44.

The square root of 28489562 is about 5337.5614282179. The cubic root of 28489562 is about 305.4184420530.

The spelling of 28489562 in words is "twenty-eight million, four hundred eighty-nine thousand, five hundred sixty-two".