28814685 has 16 divisors (see below), whose sum is σ = 46204224. Its totient is φ = 15334272.

The previous prime is 28814647. The next prime is 28814689. The reversal of 28814685 is 58641882.

It is not a de Polignac number, because 28814685 - 2⁹ = 28814173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28814689) 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 15 ways as a sum of consecutive naturals, for example, 6009 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (2887764).

Almost surely, 2^28814685 is an apocalyptic number.

It is an amenable number.

28814685 is a deficient number, since it is larger than the sum of its proper divisors (17389539).

28814685 is a wasteful number, since it uses less digits than its factorization.

28814685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204.

The product of its digits is 122880, while the sum is 42.

The square root of 28814685 is about 5367.9311657286. The cubic root of 28814685 is about 306.5758625032.

The spelling of 28814685 in words is "twenty-eight million, eight hundred fourteen thousand, six hundred eighty-five".