28060515 has 48 divisors (see below), whose sum is σ = 55972800. Its totient is φ = 12738816.

The previous prime is 28060447. The next prime is 28060531. The reversal of 28060515 is 51506082.

It is not a de Polignac number, because 28060515 - 2⁹ = 28060003 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71941 + ... + 72329.

It is an arithmetic number, because the mean of its divisors is an integer number (1166100).

Almost surely, 2^28060515 is an apocalyptic number.

28060515 is a deficient number, since it is larger than the sum of its proper divisors (27912285).

28060515 is a wasteful number, since it uses less digits than its factorization.

28060515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636 (or 633 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 28060515 is about 5297.2176659073. The cubic root of 28060515 is about 303.8775007080.

Adding to 28060515 its reverse (51506082), we get a palindrome (79566597).

The spelling of 28060515 in words is "twenty-eight million, sixty thousand, five hundred fifteen".