28985574 has 16 divisors (see below), whose sum is σ = 58705920. Its totient is φ = 9539400.

The previous prime is 28985573. The next prime is 28985617. The reversal of 28985574 is 47558982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28985573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30102 + ... + 31049.

It is an arithmetic number, because the mean of its divisors is an integer number (3669120).

Almost surely, 2^28985574 is an apocalyptic number.

28985574 is an abundant number, since it is smaller than the sum of its proper divisors (29720346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28985574 is a wasteful number, since it uses less digits than its factorization.

28985574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61235.

The product of its digits is 806400, while the sum is 48.

The square root of 28985574 is about 5383.8252200457. The cubic root of 28985574 is about 307.1807301620.

The spelling of 28985574 in words is "twenty-eight million, nine hundred eighty-five thousand, five hundred seventy-four".