28634103 has 48 divisors (see below), whose sum is σ = 46725120. Its totient is φ = 16803072.

The previous prime is 28634063. The next prime is 28634129. The reversal of 28634103 is 30143682.

It is a happy number.

28634103 is a `hidden beast` number, since 28 + 634 + 1 + 0 + 3 = 666.

It is not a de Polignac number, because 28634103 - 2¹⁷ = 28503031 is a prime.

It is a super-2 number, since 2×28634103² = 1639823709229218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28634143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 277950 + ... + 278052.

It is an arithmetic number, because the mean of its divisors is an integer number (973440).

Almost surely, 2^28634103 is an apocalyptic number.

28634103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

28634103 is a deficient number, since it is larger than the sum of its proper divisors (18091017).

28634103 is a wasteful number, since it uses less digits than its factorization.

28634103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 28634103 is about 5351.0842826478. The cubic root of 28634103 is about 305.9340816615.

Adding to 28634103 its reverse (30143682), we get a palindrome (58777785).

The spelling of 28634103 in words is "twenty-eight million, six hundred thirty-four thousand, one hundred three".