28675787 has 16 divisors (see below), whose sum is σ = 35186112. Its totient is φ = 22809600.

The previous prime is 28675771. The next prime is 28675811. The reversal of 28675787 is 78757682.

It is a cyclic number.

It is not a de Polignac number, because 28675787 - 2⁴ = 28675771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28675727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7037 + ... + 10337.

It is an arithmetic number, because the mean of its divisors is an integer number (2199132).

Almost surely, 2^28675787 is an apocalyptic number.

28675787 is a deficient number, since it is larger than the sum of its proper divisors (6510325).

28675787 is a wasteful number, since it uses less digits than its factorization.

28675787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3398.

The product of its digits is 1317120, while the sum is 50.

The square root of 28675787 is about 5354.9777777317. The cubic root of 28675787 is about 306.0824638557.

The spelling of 28675787 in words is "twenty-eight million, six hundred seventy-five thousand, seven hundred eighty-seven".