28835005 has 8 divisors (see below), whose sum is σ = 35169624. Its totient is φ = 22689600.

The previous prime is 28835003. The next prime is 28835029. The reversal of 28835005 is 50053882.

It can be written as a sum of positive squares in 4 ways, for example, as 1240996 + 27594009 = 1114^2 + 5253^2 .

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

It is not a de Polignac number, because 28835005 - 2¹ = 28835003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28835003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46966 + ... + 47575.

It is an arithmetic number, because the mean of its divisors is an integer number (4396203).

Almost surely, 2^28835005 is an apocalyptic number.

It is an amenable number.

28835005 is a deficient number, since it is larger than the sum of its proper divisors (6334619).

28835005 is an equidigital number, since it uses as much as digits as its factorization.

28835005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94607.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 28835005 is about 5369.8235538982. The cubic root of 28835005 is about 306.6479109250.

Adding to 28835005 its reverse (50053882), we get a palindrome (78888887).

The spelling of 28835005 in words is "twenty-eight million, eight hundred thirty-five thousand, five".