28824785 has 8 divisors (see below), whose sum is σ = 37734336. Its totient is φ = 20963440.

The previous prime is 28824781. The next prime is 28824787. The reversal of 28824785 is 58742882.

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

It is not a de Polignac number, because 28824785 - 2² = 28824781 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28824781) 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, 261989 + ... + 262098.

It is an arithmetic number, because the mean of its divisors is an integer number (4716792).

Almost surely, 2^28824785 is an apocalyptic number.

It is an amenable number.

28824785 is a deficient number, since it is larger than the sum of its proper divisors (8909551).

28824785 is a wasteful number, since it uses less digits than its factorization.

28824785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524103.

The product of its digits is 286720, while the sum is 44.

The square root of 28824785 is about 5368.8718554274. The cubic root of 28824785 is about 306.6116782051.

It can be divided in two parts, 2882 and 4785, that added together give a palindrome (7667).

The spelling of 28824785 in words is "twenty-eight million, eight hundred twenty-four thousand, seven hundred eighty-five".