28064847 has 8 divisors (see below), whose sum is σ = 37445040. Its totient is φ = 18697280.

The previous prime is 28064821. The next prime is 28064863. The reversal of 28064847 is 74846082.

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 28064847 - 2¹⁵ = 28032079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28064867) 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, 5179 + ... + 9107.

It is an arithmetic number, because the mean of its divisors is an integer number (4680630).

Almost surely, 2^28064847 is an apocalyptic number.

28064847 is a deficient number, since it is larger than the sum of its proper divisors (9380193).

28064847 is a wasteful number, since it uses less digits than its factorization.

28064847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 28064847 is about 5297.6265440289. The cubic root of 28064847 is about 303.8931375034.

The spelling of 28064847 in words is "twenty-eight million, sixty-four thousand, eight hundred forty-seven".