28036506 has 8 divisors (see below), whose sum is σ = 56073024. Its totient is φ = 9345500.

The previous prime is 28036501. The next prime is 28036529. The reversal of 28036506 is 60563082.

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

28036506 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28036501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336370 + ... + 2336381.

It is an arithmetic number, because the mean of its divisors is an integer number (7009128).

Almost surely, 2^28036506 is an apocalyptic number.

28036506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28036506 is a wasteful number, since it uses less digits than its factorization.

28036506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4672756.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 28036506 is about 5294.9509912746. The cubic root of 28036506 is about 303.7908085868.

Adding to 28036506 its reverse (60563082), we get a palindrome (88599588).

The spelling of 28036506 in words is "twenty-eight million, thirty-six thousand, five hundred six".