28846865 has 16 divisors (see below), whose sum is σ = 35768640. Its totient is φ = 22317120.

The previous prime is 28846859. The next prime is 28846877. The reversal of 28846865 is 56864882.

It is not a de Polignac number, because 28846865 - 2⁴ = 28846849 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 38666 + ... + 39404.

It is an arithmetic number, because the mean of its divisors is an integer number (2235540).

Almost surely, 2^28846865 is an apocalyptic number.

It is an amenable number.

28846865 is a deficient number, since it is larger than the sum of its proper divisors (6921775).

28846865 is a wasteful number, since it uses less digits than its factorization.

28846865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992.

The product of its digits is 737280, while the sum is 47.

The square root of 28846865 is about 5370.9277597078. The cubic root of 28846865 is about 306.6899471667.

The spelling of 28846865 in words is "twenty-eight million, eight hundred forty-six thousand, eight hundred sixty-five".