2085653 has 4 divisors (see below), whose sum is σ = 2142060. Its totient is φ = 2029248.

The previous prime is 2085623. The next prime is 2085659. The reversal of 2085653 is 3565802.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3565802 = 2 ⋅1782901.

It can be written as a sum of positive squares in 2 ways, for example, as 966289 + 1119364 = 983^2 + 1058^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2085653 is a prime.

It is a d-powerful number, because it can be written as 2¹⁷ + 0 + 8 + 5³ + 6⁴ + 5⁹ + 3³ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085659) by changing a digit.

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, 28148 + ... + 28221.

It is an arithmetic number, because the mean of its divisors is an integer number (535515).

2^2085653 is an apocalyptic number.

It is an amenable number.

2085653 is a deficient number, since it is larger than the sum of its proper divisors (56407).

2085653 is an equidigital number, since it uses as much as digits as its factorization.

2085653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56406.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 2085653 is about 1444.1790055253. The cubic root of 2085653 is about 127.7656233485.

The spelling of 2085653 in words is "two million, eighty-five thousand, six hundred fifty-three".