28989176 has 16 divisors (see below), whose sum is σ = 55100400. Its totient is φ = 14295744.

The previous prime is 28989157. The next prime is 28989197. The reversal of 28989176 is 67198982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24236 + ... + 25403.

It is an arithmetic number, because the mean of its divisors is an integer number (3443775).

Almost surely, 2^28989176 is an apocalyptic number.

It is an amenable number.

28989176 is a deficient number, since it is larger than the sum of its proper divisors (26111224).

28989176 is a wasteful number, since it uses less digits than its factorization.

28989176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49718 (or 49714 counting only the distinct ones).

The product of its digits is 435456, while the sum is 50.

The square root of 28989176 is about 5384.1597301715. The cubic root of 28989176 is about 307.1934539530.

The spelling of 28989176 in words is "twenty-eight million, nine hundred eighty-nine thousand, one hundred seventy-six".