28736103 has 32 divisors (see below), whose sum is σ = 44658432. Its totient is φ = 16243200.

The previous prime is 28736077. The next prime is 28736119. The reversal of 28736103 is 30163782.

It is not a de Polignac number, because 28736103 - 2¹⁰ = 28735079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28736143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 101400 + ... + 101682.

It is an arithmetic number, because the mean of its divisors is an integer number (1395576).

Almost surely, 2^28736103 is an apocalyptic number.

28736103 is a deficient number, since it is larger than the sum of its proper divisors (15922329).

28736103 is a wasteful number, since it uses less digits than its factorization.

28736103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 28736103 is about 5360.6065888106. The cubic root of 28736103 is about 306.2969158722.

Adding to 28736103 its reverse (30163782), we get a palindrome (58899885).

The spelling of 28736103 in words is "twenty-eight million, seven hundred thirty-six thousand, one hundred three".