28368103 has 4 divisors (see below), whose sum is σ = 28394488. Its totient is φ = 28341720.

The previous prime is 28368079. The next prime is 28368133. The reversal of 28368103 is 30186382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30186382 = 2 ⋅15093191.

It is a cyclic number.

It is not a de Polignac number, because 28368103 - 2¹³ = 28359911 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 (28368133) 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, 11508 + ... + 13753.

It is an arithmetic number, because the mean of its divisors is an integer number (7098622).

Almost surely, 2^28368103 is an apocalyptic number.

28368103 is a deficient number, since it is larger than the sum of its proper divisors (26385).

28368103 is a wasteful number, since it uses less digits than its factorization.

28368103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26384.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 28368103 is about 5326.1715143243. The cubic root of 28368103 is about 304.9837956096.

It can be divided in two parts, 283 and 68103, that added together give a palindrome (68386).

The spelling of 28368103 in words is "twenty-eight million, three hundred sixty-eight thousand, one hundred three".