28397103 has 16 divisors (see below), whose sum is σ = 43822080. Its totient is φ = 16020576.

The previous prime is 28397087. The next prime is 28397107. The reversal of 28397103 is 30179382.

It is not a de Polignac number, because 28397103 - 2⁴ = 28397087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28397107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6900 + ... + 10217.

It is an arithmetic number, because the mean of its divisors is an integer number (2738880).

Almost surely, 2^28397103 is an apocalyptic number.

28397103 is a deficient number, since it is larger than the sum of its proper divisors (15424977).

28397103 is a wasteful number, since it uses less digits than its factorization.

28397103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17206.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 28397103 is about 5328.8932246762. The cubic root of 28397103 is about 305.0876859771.

The spelling of 28397103 in words is "twenty-eight million, three hundred ninety-seven thousand, one hundred three".