28600855 has 4 divisors (see below), whose sum is σ = 34321032. Its totient is φ = 22880680.

The previous prime is 28600849. The next prime is 28600861. The reversal of 28600855 is 55800682.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (28600849) and next prime (28600861).

It is not a de Polignac number, because 28600855 - 2⁵ = 28600823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28600855.

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 3 ways as a sum of consecutive naturals, for example, 2860081 + ... + 2860090.

It is an arithmetic number, because the mean of its divisors is an integer number (8580258).

Almost surely, 2^28600855 is an apocalyptic number.

28600855 is a deficient number, since it is larger than the sum of its proper divisors (5720177).

28600855 is an equidigital number, since it uses as much as digits as its factorization.

28600855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720176.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 28600855 is about 5347.9767202186. The cubic root of 28600855 is about 305.8156257561.

The spelling of 28600855 in words is "twenty-eight million, six hundred thousand, eight hundred fifty-five".