28603113 has 60 divisors (see below), whose sum is σ = 51224688. Its totient is φ = 14076720.

The previous prime is 28603097. The next prime is 28603123. The reversal of 28603113 is 31130682.

It is not a de Polignac number, because 28603113 - 2⁴ = 28603097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28603123) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1505418 + ... + 1505436.

Almost surely, 2^28603113 is an apocalyptic number.

It is an amenable number.

28603113 is a deficient number, since it is larger than the sum of its proper divisors (22621575).

28603113 is an equidigital number, since it uses as much as digits as its factorization.

28603113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80 (or 40 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 28603113 is about 5348.1878239269. The cubic root of 28603113 is about 305.8236734586.

Adding to 28603113 its reverse (31130682), we get a palindrome (59733795).

The spelling of 28603113 in words is "twenty-eight million, six hundred three thousand, one hundred thirteen".