28836818 has 8 divisors (see below), whose sum is σ = 43531212. Its totient is φ = 14326416.

The previous prime is 28836793. The next prime is 28836833. The reversal of 28836818 is 81863882.

It can be written as a sum of positive squares in 2 ways, for example, as 27112849 + 1723969 = 5207^2 + 1313^2 .

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

It is an unprimeable number.

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, 45605 + ... + 46232.

Almost surely, 2^28836818 is an apocalyptic number.

28836818 is a deficient number, since it is larger than the sum of its proper divisors (14694394).

28836818 is a wasteful number, since it uses less digits than its factorization.

28836818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91996.

The product of its digits is 147456, while the sum is 44.

The square root of 28836818 is about 5369.9923649853. The cubic root of 28836818 is about 306.6543376161.

The spelling of 28836818 in words is "twenty-eight million, eight hundred thirty-six thousand, eight hundred eighteen".