28276395 has 32 divisors (see below), whose sum is σ = 52005888. Its totient is φ = 12851328.

The previous prime is 28276393. The next prime is 28276397. The reversal of 28276395 is 59367282.

It is an interprime number because it is at equal distance from previous prime (28276393) and next prime (28276397).

It is not a de Polignac number, because 28276395 - 2¹ = 28276393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28276393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20002 + ... + 21368.

It is an arithmetic number, because the mean of its divisors is an integer number (1625184).

Almost surely, 2^28276395 is an apocalyptic number.

28276395 is a deficient number, since it is larger than the sum of its proper divisors (23729493).

28276395 is a wasteful number, since it uses less digits than its factorization.

28276395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1579.

The product of its digits is 181440, while the sum is 42.

The square root of 28276395 is about 5317.5553593733. Note that the first 3 decimals coincide. The cubic root of 28276395 is about 304.6547917289.

The spelling of 28276395 in words is "twenty-eight million, two hundred seventy-six thousand, three hundred ninety-five".