28264103 has 4 divisors (see below), whose sum is σ = 32301840. Its totient is φ = 24226368.

The previous prime is 28264097. The next prime is 28264111. The reversal of 28264103 is 30146282.

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 28264103 - 2⁴ = 28264087 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 (28264123) 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, 2018858 + ... + 2018871.

It is an arithmetic number, because the mean of its divisors is an integer number (8075460).

Almost surely, 2^28264103 is an apocalyptic number.

28264103 is a deficient number, since it is larger than the sum of its proper divisors (4037737).

28264103 is an equidigital number, since it uses as much as digits as its factorization.

28264103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4037736.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 28264103 is about 5316.3994394703. The cubic root of 28264103 is about 304.6106399494.

It can be divided in two parts, 28264 and 103, that multiplied together give a palindrome (2911192).

The spelling of 28264103 in words is "twenty-eight million, two hundred sixty-four thousand, one hundred three".