28535115 has 32 divisors (see below), whose sum is σ = 52392960. Its totient is φ = 12991104.

The previous prime is 28535107. The next prime is 28535141. The reversal of 28535115 is 51153582.

It is not a de Polignac number, because 28535115 - 2³ = 28535107 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37317 + ... + 38073.

It is an arithmetic number, because the mean of its divisors is an integer number (1637280).

Almost surely, 2^28535115 is an apocalyptic number.

28535115 is a deficient number, since it is larger than the sum of its proper divisors (23857845).

28535115 is a wasteful number, since it uses less digits than its factorization.

28535115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131.

The product of its digits is 6000, while the sum is 30.

The square root of 28535115 is about 5341.8269346732. The cubic root of 28535115 is about 305.5811369338.

Adding to 28535115 its reverse (51153582), we get a palindrome (79688697).

The spelling of 28535115 in words is "twenty-eight million, five hundred thirty-five thousand, one hundred fifteen".