28500116 has 12 divisors (see below), whose sum is σ = 49922880. Its totient is φ = 14236440.

The previous prime is 28500113. The next prime is 28500137. The reversal of 28500116 is 61100582.

It is a super-2 number, since 2×28500116² = 1624513224026912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28500091 and 28500100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28500113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2405 + ... + 7923.

It is an arithmetic number, because the mean of its divisors is an integer number (4160240).

Almost surely, 2^28500116 is an apocalyptic number.

It is an amenable number.

28500116 is a deficient number, since it is larger than the sum of its proper divisors (21422764).

28500116 is a wasteful number, since it uses less digits than its factorization.

28500116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6814 (or 6812 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 28500116 is about 5338.5499904000. The cubic root of 28500116 is about 305.4561516334.

Adding to 28500116 its reverse (61100582), we get a palindrome (89600698).

The spelling of 28500116 in words is "twenty-eight million, five hundred thousand, one hundred sixteen".