28807753 has 24 divisors (see below), whose sum is σ = 33445440. Its totient is φ = 24652320.

The previous prime is 28807729. The next prime is 28807763. The reversal of 28807753 is 35770882.

It is not a de Polignac number, because 28807753 - 2⁹ = 28807241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28807703) 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 23 ways as a sum of consecutive naturals, for example, 405708 + ... + 405778.

It is an arithmetic number, because the mean of its divisors is an integer number (1393560).

Almost surely, 2^28807753 is an apocalyptic number.

28807753 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28807753 is a deficient number, since it is larger than the sum of its proper divisors (4637687).

28807753 is a wasteful number, since it uses less digits than its factorization.

28807753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 40.

The square root of 28807753 is about 5367.2854405183. The cubic root of 28807753 is about 306.5512760314.

The spelling of 28807753 in words is "twenty-eight million, eight hundred seven thousand, seven hundred fifty-three".