28000103 has 8 divisors (see below), whose sum is σ = 28296576. Its totient is φ = 27705600.

The previous prime is 28000097. The next prime is 28000121. The reversal of 28000103 is 30100082.

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 28000103 - 2⁴ = 28000087 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 (28000123) 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 7 ways as a sum of consecutive naturals, for example, 53483 + ... + 54003.

It is an arithmetic number, because the mean of its divisors is an integer number (3537072).

Almost surely, 2^28000103 is an apocalyptic number.

28000103 is a deficient number, since it is larger than the sum of its proper divisors (296473).

28000103 is a wasteful number, since it uses less digits than its factorization.

28000103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 28000103 is about 5291.5123547054. The cubic root of 28000103 is about 303.6592695308.

Adding to 28000103 its reverse (30100082), we get a palindrome (58100185).

The spelling of 28000103 in words is "twenty-eight million, one hundred three", and thus it is an aban number.