28398795 has 16 divisors (see below), whose sum is σ = 46667040. Its totient is φ = 14736384.

The previous prime is 28398781. The next prime is 28398809. The reversal of 28398795 is 59789382.

It is an interprime number because it is at equal distance from previous prime (28398781) and next prime (28398809).

It is not a de Polignac number, because 28398795 - 2⁴ = 28398779 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 15 ways as a sum of consecutive naturals, for example, 25030 + ... + 26139.

It is an arithmetic number, because the mean of its divisors is an integer number (2916690).

Almost surely, 2^28398795 is an apocalyptic number.

28398795 is a deficient number, since it is larger than the sum of its proper divisors (18268245).

28398795 is a wasteful number, since it uses less digits than its factorization.

28398795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51214.

The product of its digits is 1088640, while the sum is 51.

The square root of 28398795 is about 5329.0519794800. The cubic root of 28398795 is about 305.0937452584.

The spelling of 28398795 in words is "twenty-eight million, three hundred ninety-eight thousand, seven hundred ninety-five".