28614205 has 4 divisors (see below), whose sum is σ = 34337052. Its totient is φ = 22891360.

The previous prime is 28614203. The next prime is 28614217. The reversal of 28614205 is 50241682.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7628644 + 20985561 = 2762^2 + 4581^2 .

It is not a de Polignac number, because 28614205 - 2¹ = 28614203 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 (28614203) 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, 2861416 + ... + 2861425.

It is an arithmetic number, because the mean of its divisors is an integer number (8584263).

Almost surely, 2^28614205 is an apocalyptic number.

It is an amenable number.

28614205 is a deficient number, since it is larger than the sum of its proper divisors (5722847).

28614205 is an equidigital number, since it uses as much as digits as its factorization.

28614205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5722846.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 28614205 is about 5349.2247101800. The cubic root of 28614205 is about 305.8632001329.

Adding to 28614205 its reverse (50241682), we get a palindrome (78855887).

The spelling of 28614205 in words is "twenty-eight million, six hundred fourteen thousand, two hundred five".