28074085 has 16 divisors (see below), whose sum is σ = 36393840. Its totient is φ = 20666880.

The previous prime is 28074073. The next prime is 28074097. The reversal of 28074085 is 58047082.

It is an interprime number because it is at equal distance from previous prime (28074073) and next prime (28074097).

It can be written as a sum of positive squares in 8 ways, for example, as 3094081 + 24980004 = 1759^2 + 4998^2 .

It is not a de Polignac number, because 28074085 - 2⁷ = 28073957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28074085.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 33451 + ... + 34279.

It is an arithmetic number, because the mean of its divisors is an integer number (2274615).

Almost surely, 2^28074085 is an apocalyptic number.

It is an amenable number.

28074085 is a deficient number, since it is larger than the sum of its proper divisors (8319755).

28074085 is a wasteful number, since it uses less digits than its factorization.

28074085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368.

The product of its (nonzero) digits is 17920, while the sum is 34.

The square root of 28074085 is about 5298.4983721806. The cubic root of 28074085 is about 303.9264776321.

The spelling of 28074085 in words is "twenty-eight million, seventy-four thousand, eighty-five".