28260703 has 4 divisors (see below), whose sum is σ = 29235240. Its totient is φ = 27286168.

The previous prime is 28260697. The next prime is 28260737. The reversal of 28260703 is 30706282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28260703 - 2⁹ = 28260191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28261703) 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 3 ways as a sum of consecutive naturals, for example, 487225 + ... + 487282.

It is an arithmetic number, because the mean of its divisors is an integer number (7308810).

Almost surely, 2^28260703 is an apocalyptic number.

28260703 is a deficient number, since it is larger than the sum of its proper divisors (974537).

28260703 is an equidigital number, since it uses as much as digits as its factorization.

28260703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974536.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 28260703 is about 5316.0796645649. The cubic root of 28260703 is about 304.5984251894.

Adding to 28260703 its reverse (30706282), we get a palindrome (58966985).

The spelling of 28260703 in words is "twenty-eight million, two hundred sixty thousand, seven hundred three".