28795515 has 16 divisors (see below), whose sum is σ = 52654848. Its totient is φ = 13163616.

The previous prime is 28795493. The next prime is 28795531. The reversal of 28795515 is 51559782.

It is not a de Polignac number, because 28795515 - 2⁷ = 28795387 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137017 + ... + 137226.

It is an arithmetic number, because the mean of its divisors is an integer number (3290928).

Almost surely, 2^28795515 is an apocalyptic number.

28795515 is a deficient number, since it is larger than the sum of its proper divisors (23859333).

28795515 is a wasteful number, since it uses less digits than its factorization.

28795515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274258.

The product of its digits is 126000, while the sum is 42.

The square root of 28795515 is about 5366.1452645265. The cubic root of 28795515 is about 306.5078605675.

The spelling of 28795515 in words is "twenty-eight million, seven hundred ninety-five thousand, five hundred fifteen".