28398363 has 16 divisors (see below), whose sum is σ = 44330496. Its totient is φ = 15831360.

The previous prime is 28398341. The next prime is 28398371. The reversal of 28398363 is 36389382.

It is not a de Polignac number, because 28398363 - 2⁸ = 28398107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28398323) by changing a digit.

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, 15631 + ... + 17352.

It is an arithmetic number, because the mean of its divisors is an integer number (2770656).

Almost surely, 2^28398363 is an apocalyptic number.

28398363 is a deficient number, since it is larger than the sum of its proper divisors (15932133).

28398363 is a wasteful number, since it uses less digits than its factorization.

28398363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33034.

The product of its digits is 186624, while the sum is 42.

The square root of 28398363 is about 5329.0114467882. The cubic root of 28398363 is about 305.0921982307.

The spelling of 28398363 in words is "twenty-eight million, three hundred ninety-eight thousand, three hundred sixty-three".