28084703 has 4 divisors (see below), whose sum is σ = 28194240. Its totient is φ = 27975168.

The previous prime is 28084699. The next prime is 28084711. The reversal of 28084703 is 30748082.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30748082 = 2 ⋅15374041.

It is a cyclic number.

It is not a de Polignac number, because 28084703 - 2² = 28084699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28084703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28084723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54383 + ... + 54896.

It is an arithmetic number, because the mean of its divisors is an integer number (7048560).

Almost surely, 2^28084703 is an apocalyptic number.

28084703 is a deficient number, since it is larger than the sum of its proper divisors (109537).

28084703 is a wasteful number, since it uses less digits than its factorization.

28084703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109536.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 28084703 is about 5299.5002594584. The cubic root of 28084703 is about 303.9647891756.

The spelling of 28084703 in words is "twenty-eight million, eighty-four thousand, seven hundred three".