28995115 has 16 divisors (see below), whose sum is σ = 37702368. Its totient is φ = 21321216.

The previous prime is 28995097. The next prime is 28995119. The reversal of 28995115 is 51159982.

It is a cyclic number.

It is not a de Polignac number, because 28995115 - 2¹⁵ = 28962347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28995119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312 + ... + 7621.

It is an arithmetic number, because the mean of its divisors is an integer number (2356398).

Almost surely, 2^28995115 is an apocalyptic number.

28995115 is a deficient number, since it is larger than the sum of its proper divisors (8707253).

28995115 is a wasteful number, since it uses less digits than its factorization.

28995115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7998.

The product of its digits is 32400, while the sum is 40.

The square root of 28995115 is about 5384.7112271690. The cubic root of 28995115 is about 307.2144307175.

The spelling of 28995115 in words is "twenty-eight million, nine hundred ninety-five thousand, one hundred fifteen".