28824847 has 8 divisors (see below), whose sum is σ = 29272320. Its totient is φ = 28381080.

The previous prime is 28824841. The next prime is 28824857. The reversal of 28824847 is 74842882.

28824847 is nontrivially palindromic in base 5.

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 28824847 - 2¹⁵ = 28792079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28824841) 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, 17418 + ... + 19000.

It is an arithmetic number, because the mean of its divisors is an integer number (3659040).

Almost surely, 2^28824847 is an apocalyptic number.

28824847 is a deficient number, since it is larger than the sum of its proper divisors (447473).

28824847 is a wasteful number, since it uses less digits than its factorization.

28824847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1853.

The product of its digits is 229376, while the sum is 43.

The square root of 28824847 is about 5368.8776294492. The cubic root of 28824847 is about 306.6118980380.

The spelling of 28824847 in words is "twenty-eight million, eight hundred twenty-four thousand, eight hundred forty-seven".