28857763 has 8 divisors (see below), whose sum is σ = 31575600. Its totient is φ = 26155680.

The previous prime is 28857739. The next prime is 28857779. The reversal of 28857763 is 36775882.

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 28857763 - 2¹³ = 28849571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28857733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81 + ... + 7597.

It is an arithmetic number, because the mean of its divisors is an integer number (3946950).

Almost surely, 2^28857763 is an apocalyptic number.

28857763 is a deficient number, since it is larger than the sum of its proper divisors (2717837).

28857763 is a wasteful number, since it uses less digits than its factorization.

28857763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7877.

The product of its digits is 564480, while the sum is 46.

The square root of 28857763 is about 5371.9421999869. The cubic root of 28857763 is about 306.7285635667.

It can be divided in two parts, 2885 and 7763, that added together give a cube (10648 = 22³).

The spelling of 28857763 in words is "twenty-eight million, eight hundred fifty-seven thousand, seven hundred sixty-three".