28806065 has 8 divisors (see below), whose sum is σ = 35303040. Its totient is φ = 22554352.

The previous prime is 28806059. The next prime is 28806079. The reversal of 28806065 is 56060882.

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 28806065 - 2⁸ = 28805809 is a prime.

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, 61055 + ... + 61524.

It is an arithmetic number, because the mean of its divisors is an integer number (4412880).

Almost surely, 2^28806065 is an apocalyptic number.

It is an amenable number.

28806065 is a deficient number, since it is larger than the sum of its proper divisors (6496975).

28806065 is a wasteful number, since it uses less digits than its factorization.

28806065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122631.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 28806065 is about 5367.1281892647. The cubic root of 28806065 is about 306.5452884227.

The spelling of 28806065 in words is "twenty-eight million, eight hundred six thousand, sixty-five".