2685897 has 24 divisors (see below), whose sum is σ = 4149600. Its totient is φ = 1669248.

The previous prime is 2685887. The next prime is 2685901. The reversal of 2685897 is 7985862.

2685897 is a `hidden beast` number, since 2 + 68 + 589 + 7 = 666.

It is not a de Polignac number, because 2685897 - 2¹⁸ = 2423753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2685817) 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 23 ways as a sum of consecutive naturals, for example, 19254 + ... + 19392.

It is an arithmetic number, because the mean of its divisors is an integer number (172900).

2^2685897 is an apocalyptic number.

It is an amenable number.

2685897 is a deficient number, since it is larger than the sum of its proper divisors (1463703).

2685897 is a wasteful number, since it uses less digits than its factorization.

2685897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 274 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 2685897 is about 1638.8706477328. The cubic root of 2685897 is about 139.0047959976.

It can be divided in two parts, 26 and 85897, that multiplied together give a palindrome (2233322).

The spelling of 2685897 in words is "two million, six hundred eighty-five thousand, eight hundred ninety-seven".