28516735 has 32 divisors (see below), whose sum is σ = 39517632. Its totient is φ = 19568640.

The previous prime is 28516727. The next prime is 28516759. The reversal of 28516735 is 53761582.

It is not a de Polignac number, because 28516735 - 2³ = 28516727 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28516694 and 28516703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144657 + ... + 144853.

It is an arithmetic number, because the mean of its divisors is an integer number (1234926).

Almost surely, 2^28516735 is an apocalyptic number.

28516735 is a deficient number, since it is larger than the sum of its proper divisors (11000897).

28516735 is a wasteful number, since it uses less digits than its factorization.

28516735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its digits is 50400, while the sum is 37.

The square root of 28516735 is about 5340.1062723508. The cubic root of 28516735 is about 305.5155126712.

It can be divided in two parts, 285 and 16735, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 28516735 in words is "twenty-eight million, five hundred sixteen thousand, seven hundred thirty-five".