28836605 has 8 divisors (see below), whose sum is σ = 39547392. Its totient is φ = 19773648.

The previous prime is 28836589. The next prime is 28836631. The reversal of 28836605 is 50663882.

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

It is a cyclic number.

It is not a de Polignac number, because 28836605 - 2⁴ = 28836589 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 411917 + ... + 411986.

It is an arithmetic number, because the mean of its divisors is an integer number (4943424).

Almost surely, 2^28836605 is an apocalyptic number.

It is an amenable number.

28836605 is a deficient number, since it is larger than the sum of its proper divisors (10710787).

28836605 is an equidigital number, since it uses as much as digits as its factorization.

28836605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823915.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 28836605 is about 5369.9725325182. The cubic root of 28836605 is about 306.6535825913.

The spelling of 28836605 in words is "twenty-eight million, eight hundred thirty-six thousand, six hundred five".