28394035 has 4 divisors (see below), whose sum is σ = 34072848. Its totient is φ = 22715224.

The previous prime is 28394033. The next prime is 28394053. The reversal of 28394035 is 53049382.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28394035 - 2¹ = 28394033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28394033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2839399 + ... + 2839408.

It is an arithmetic number, because the mean of its divisors is an integer number (8518212).

Almost surely, 2^28394035 is an apocalyptic number.

28394035 is a deficient number, since it is larger than the sum of its proper divisors (5678813).

28394035 is an equidigital number, since it uses as much as digits as its factorization.

28394035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5678812.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 28394035 is about 5328.6053522474. The cubic root of 28394035 is about 305.0766984392.

The spelling of 28394035 in words is "twenty-eight million, three hundred ninety-four thousand, thirty-five".