2195685 has 24 divisors (see below), whose sum is σ = 3875040. Its totient is φ = 1149792.

The previous prime is 2195681. The next prime is 2195701. The reversal of 2195685 is 5865912.

It is a happy number.

It is not a de Polignac number, because 2195685 - 2² = 2195681 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2242 + ... + 3068.

It is an arithmetic number, because the mean of its divisors is an integer number (161460).

2^2195685 is an apocalyptic number.

It is an amenable number.

2195685 is a deficient number, since it is larger than the sum of its proper divisors (1679355).

2195685 is a wasteful number, since it uses less digits than its factorization.

2195685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897 (or 894 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 2195685 is about 1481.7843972724. The cubic root of 2195685 is about 129.9740579399.

The spelling of 2195685 in words is "two million, one hundred ninety-five thousand, six hundred eighty-five".