28796775 has 24 divisors (see below), whose sum is σ = 54413184. Its totient is φ = 13164000.

The previous prime is 28796773. The next prime is 28796777. The reversal of 28796775 is 57769782.

It is an interprime number because it is at equal distance from previous prime (28796773) and next prime (28796777).

It is not a de Polignac number, because 28796775 - 2¹ = 28796773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28796771) 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 23 ways as a sum of consecutive naturals, for example, 26901 + ... + 27950.

It is an arithmetic number, because the mean of its divisors is an integer number (2267216).

Almost surely, 2^28796775 is an apocalyptic number.

28796775 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28796775 is a deficient number, since it is larger than the sum of its proper divisors (25616409).

28796775 is a wasteful number, since it uses less digits than its factorization.

28796775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54871 (or 54866 counting only the distinct ones).

The product of its digits is 1481760, while the sum is 51.

The square root of 28796775 is about 5366.2626659529. The cubic root of 28796775 is about 306.5123311048.

The spelling of 28796775 in words is "twenty-eight million, seven hundred ninety-six thousand, seven hundred seventy-five".