28235635 has 8 divisors (see below), whose sum is σ = 34360416. Its totient is φ = 22270080.

The previous prime is 28235629. The next prime is 28235659. The reversal of 28235635 is 53653282.

It is a happy number.

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

It is not a de Polignac number, because 28235635 - 2¹¹ = 28233587 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28235635.

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 7 ways as a sum of consecutive naturals, for example, 39414 + ... + 40123.

It is an arithmetic number, because the mean of its divisors is an integer number (4295052).

Almost surely, 2^28235635 is an apocalyptic number.

28235635 is a deficient number, since it is larger than the sum of its proper divisors (6124781).

28235635 is an equidigital number, since it uses as much as digits as its factorization.

28235635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79613.

The product of its digits is 43200, while the sum is 34.

The square root of 28235635 is about 5313.7213890079. The cubic root of 28235635 is about 304.5083362283.

The spelling of 28235635 in words is "twenty-eight million, two hundred thirty-five thousand, six hundred thirty-five".