28796489 has 8 divisors (see below), whose sum is σ = 29822208. Its totient is φ = 27776880.

The previous prime is 28796461. The next prime is 28796513. The reversal of 28796489 is 98469782.

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

It is a cyclic number.

It is not a de Polignac number, because 28796489 - 2⁸ = 28796233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28796489.

It is not an unprimeable number, because it can be changed into a prime (28796689) 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, 9419 + ... + 12095.

It is an arithmetic number, because the mean of its divisors is an integer number (3727776).

Almost surely, 2^28796489 is an apocalyptic number.

It is an amenable number.

28796489 is a deficient number, since it is larger than the sum of its proper divisors (1025719).

28796489 is a wasteful number, since it uses less digits than its factorization.

28796489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3055.

The product of its digits is 1741824, while the sum is 53.

The square root of 28796489 is about 5366.2360179180. The cubic root of 28796489 is about 306.5113163752.

The spelling of 28796489 in words is "twenty-eight million, seven hundred ninety-six thousand, four hundred eighty-nine".