28768953 has 8 divisors (see below), whose sum is σ = 38448928. Its totient is φ = 19134144.

The previous prime is 28768951. The next prime is 28768963. The reversal of 28768953 is 35986782.

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

It is not a de Polignac number, because 28768953 - 2¹ = 28768951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28768951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9775 + ... + 12372.

It is an arithmetic number, because the mean of its divisors is an integer number (4806116).

Almost surely, 2^28768953 is an apocalyptic number.

It is an amenable number.

28768953 is a deficient number, since it is larger than the sum of its proper divisors (9679975).

28768953 is a wasteful number, since it uses less digits than its factorization.

28768953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22583.

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

The square root of 28768953 is about 5363.6697325618. The cubic root of 28768953 is about 306.4135870160.

The spelling of 28768953 in words is "twenty-eight million, seven hundred sixty-eight thousand, nine hundred fifty-three".