28804065 has 8 divisors (see below), whose sum is σ = 46086528. Its totient is φ = 15362160.

The previous prime is 28804051. The next prime is 28804067. The reversal of 28804065 is 56040882.

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

It is not a de Polignac number, because 28804065 - 2⁵ = 28804033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28804067) 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, 960121 + ... + 960150.

It is an arithmetic number, because the mean of its divisors is an integer number (5760816).

Almost surely, 2^28804065 is an apocalyptic number.

It is an amenable number.

28804065 is a deficient number, since it is larger than the sum of its proper divisors (17282463).

28804065 is a wasteful number, since it uses less digits than its factorization.

28804065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920279.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 28804065 is about 5366.9418666499. The cubic root of 28804065 is about 306.5381937968.

The spelling of 28804065 in words is "twenty-eight million, eight hundred four thousand, sixty-five".