28025785 has 8 divisors (see below), whose sum is σ = 33958080. Its totient is φ = 22202544.

The previous prime is 28025749. The next prime is 28025791. The reversal of 28025785 is 58752082.

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

It is a cyclic number.

It is not a de Polignac number, because 28025785 - 2⁹ = 28025273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26695 + ... + 27724.

It is an arithmetic number, because the mean of its divisors is an integer number (4244760).

Almost surely, 2^28025785 is an apocalyptic number.

It is an amenable number.

28025785 is a deficient number, since it is larger than the sum of its proper divisors (5932295).

28025785 is a wasteful number, since it uses less digits than its factorization.

28025785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54527.

The product of its (nonzero) digits is 44800, while the sum is 37.

The square root of 28025785 is about 5293.9385149433. The cubic root of 28025785 is about 303.7520810258.

The spelling of 28025785 in words is "twenty-eight million, twenty-five thousand, seven hundred eighty-five".