28279435 has 4 divisors (see below), whose sum is σ = 33935328. Its totient is φ = 22623544.

The previous prime is 28279399. The next prime is 28279441. The reversal of 28279435 is 53497282.

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 28279435 - 2¹¹ = 28277387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2827939 + ... + 2827948.

It is an arithmetic number, because the mean of its divisors is an integer number (8483832).

Almost surely, 2^28279435 is an apocalyptic number.

28279435 is a deficient number, since it is larger than the sum of its proper divisors (5655893).

28279435 is an equidigital number, since it uses as much as digits as its factorization.

28279435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5655892.

The product of its digits is 120960, while the sum is 40.

The square root of 28279435 is about 5317.8411973281. The cubic root of 28279435 is about 304.6657091670.

The spelling of 28279435 in words is "twenty-eight million, two hundred seventy-nine thousand, four hundred thirty-five".