2685685 has 8 divisors (see below), whose sum is σ = 3326976. Its totient is φ = 2079120.

The previous prime is 2685673. The next prime is 2685689. The reversal of 2685685 is 5865862.

2685685 = 15² + 16² + ... + 200².

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

It is not a de Polignac number, because 2685685 - 2⁵ = 2685653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8509 + ... + 8818.

It is an arithmetic number, because the mean of its divisors is an integer number (415872).

2^2685685 is an apocalyptic number.

It is an amenable number.

2685685 is a deficient number, since it is larger than the sum of its proper divisors (641291).

2685685 is a wasteful number, since it uses less digits than its factorization.

2685685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17363.

The product of its digits is 115200, while the sum is 40.

The square root of 2685685 is about 1638.8059677704. The cubic root of 2685685 is about 139.0011386481.

The spelling of 2685685 in words is "two million, six hundred eighty-five thousand, six hundred eighty-five".