2085639 has 8 divisors (see below), whose sum is σ = 2795760. Its totient is φ = 1382976.

The previous prime is 2085623. The next prime is 2085659. The reversal of 2085639 is 9365802.

It is a happy number.

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

It is not a de Polignac number, because 2085639 - 2⁴ = 2085623 is a prime.

2085639 is a lucky 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 7 ways as a sum of consecutive naturals, for example, 1174 + ... + 2355.

It is an arithmetic number, because the mean of its divisors is an integer number (349470).

2^2085639 is an apocalyptic number.

2085639 is a deficient number, since it is larger than the sum of its proper divisors (710121).

2085639 is a wasteful number, since it uses less digits than its factorization.

2085639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3729.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2085639 is about 1444.1741584726. The cubic root of 2085639 is about 127.7653374712.

The spelling of 2085639 in words is "two million, eighty-five thousand, six hundred thirty-nine".