28678095 has 12 divisors (see below), whose sum is σ = 49708776. Its totient is φ = 15294960.

The previous prime is 28678081. The next prime is 28678103. The reversal of 28678095 is 59087682.

It is not a de Polignac number, because 28678095 - 2¹⁷ = 28547023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 637291 = 28678095 / (2 + 8 + 6 + 7 + 8 + 0 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 28678095.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 318601 + ... + 318690.

It is an arithmetic number, because the mean of its divisors is an integer number (4142398).

Almost surely, 2^28678095 is an apocalyptic number.

28678095 is a deficient number, since it is larger than the sum of its proper divisors (21030681).

28678095 is a wasteful number, since it uses less digits than its factorization.

28678095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637302 (or 637299 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28678095 is about 5355.1932738231. The cubic root of 28678095 is about 306.0906754219.

The spelling of 28678095 in words is "twenty-eight million, six hundred seventy-eight thousand, ninety-five".