28865793 has 8 divisors (see below), whose sum is σ = 41986656. Its totient is φ = 17494400.

The previous prime is 28865791. The next prime is 28865797. The reversal of 28865793 is 39756882.

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

It is not a de Polignac number, because 28865793 - 2¹ = 28865791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28865791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437328 + ... + 437393.

It is an arithmetic number, because the mean of its divisors is an integer number (5248332).

Almost surely, 2^28865793 is an apocalyptic number.

It is an amenable number.

28865793 is a deficient number, since it is larger than the sum of its proper divisors (13120863).

28865793 is a wasteful number, since it uses less digits than its factorization.

28865793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 874735.

The product of its digits is 725760, while the sum is 48.

The square root of 28865793 is about 5372.6895499368. The cubic root of 28865793 is about 306.7570111627.

The spelling of 28865793 in words is "twenty-eight million, eight hundred sixty-five thousand, seven hundred ninety-three".