2685965 has 8 divisors (see below), whose sum is σ = 3236760. Its totient is φ = 2139712.

The previous prime is 2685961. The next prime is 2685967. The reversal of 2685965 is 5695862.

2685965 is nontrivially palindromic in base 9.

2685965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 170569 + 2515396 = 413^2 + 1586^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2685965 - 2² = 2685961 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685961) 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 7 ways as a sum of consecutive naturals, for example, 347 + ... + 2343.

It is an arithmetic number, because the mean of its divisors is an integer number (404595).

2^2685965 is an apocalyptic number.

It is an amenable number.

2685965 is a deficient number, since it is larger than the sum of its proper divisors (550795).

2685965 is a wasteful number, since it uses less digits than its factorization.

2685965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271.

The product of its digits is 129600, while the sum is 41.

The square root of 2685965 is about 1638.8913935951. The cubic root of 2685965 is about 139.0059690689.

The spelling of 2685965 in words is "two million, six hundred eighty-five thousand, nine hundred sixty-five".