28853665 has 8 divisors (see below), whose sum is σ = 34656768. Its totient is φ = 23061360.

The previous prime is 28853663. The next prime is 28853681. The reversal of 28853665 is 56635882.

It is a happy number.

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

It is not a de Polignac number, because 28853665 - 2¹ = 28853663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28853663) 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, 5394 + ... + 9316.

It is an arithmetic number, because the mean of its divisors is an integer number (4332096).

Almost surely, 2^28853665 is an apocalyptic number.

It is an amenable number.

28853665 is a deficient number, since it is larger than the sum of its proper divisors (5803103).

28853665 is a wasteful number, since it uses less digits than its factorization.

28853665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its digits is 345600, while the sum is 43.

The square root of 28853665 is about 5371.5607601516. The cubic root of 28853665 is about 306.7140436938.

The spelling of 28853665 in words is "twenty-eight million, eight hundred fifty-three thousand, six hundred sixty-five".