28396135 has 8 divisors (see below), whose sum is σ = 34388640. Its totient is φ = 22508064.

The previous prime is 28396129. The next prime is 28396139. The reversal of 28396135 is 53169382.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28396135 - 2⁹ = 28395623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28396094 and 28396103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28396139) 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 7 ways as a sum of consecutive naturals, for example, 25507 + ... + 26596.

It is an arithmetic number, because the mean of its divisors is an integer number (4298580).

Almost surely, 2^28396135 is an apocalyptic number.

28396135 is a deficient number, since it is larger than the sum of its proper divisors (5992505).

28396135 is a wasteful number, since it uses less digits than its factorization.

28396135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52217.

The product of its digits is 38880, while the sum is 37.

The square root of 28396135 is about 5328.8023982880. The cubic root of 28396135 is about 305.0842193296.

The spelling of 28396135 in words is "twenty-eight million, three hundred ninety-six thousand, one hundred thirty-five".