28805853 has 8 divisors (see below), whose sum is σ = 38435616. Its totient is φ = 19190000.

The previous prime is 28805827. The next prime is 28805857. The reversal of 28805853 is 35850882.

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 28805853 - 2⁸ = 28805597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28805857) 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, 3178 + ... + 8228.

It is an arithmetic number, because the mean of its divisors is an integer number (4804452).

Almost surely, 2^28805853 is an apocalyptic number.

It is an amenable number.

28805853 is a deficient number, since it is larger than the sum of its proper divisors (9629763).

28805853 is a wasteful number, since it uses less digits than its factorization.

28805853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 28805853 is about 5367.1084393740. The cubic root of 28805853 is about 306.5445364079.

The spelling of 28805853 in words is "twenty-eight million, eight hundred five thousand, eight hundred fifty-three".