2085897 has 16 divisors (see below), whose sum is σ = 3133440. Its totient is φ = 1222800.

The previous prime is 2085869. The next prime is 2085899. The reversal of 2085897 is 7985802.

It is not a de Polignac number, because 2085897 - 2⁶ = 2085833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2085899) by changing a digit.

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, 4 + ... + 2042.

It is an arithmetic number, because the mean of its divisors is an integer number (195840).

2^2085897 is an apocalyptic number.

It is an amenable number.

2085897 is a deficient number, since it is larger than the sum of its proper divisors (1047543).

2085897 is a wasteful number, since it uses less digits than its factorization.

2085897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2084.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2085897 is about 1444.2634801171. The cubic root of 2085897 is about 127.7706055766.

It can be divided in two parts, 208 and 5897, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 2085897 in words is "two million, eighty-five thousand, eight hundred ninety-seven".