2685015 has 16 divisors (see below), whose sum is σ = 4773600. Its totient is φ = 1431936.

The previous prime is 2684999. The next prime is 2685017. The reversal of 2685015 is 5105862.

It is not a de Polignac number, because 2685015 - 2⁴ = 2684999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 2685015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2685017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9810 + ... + 10079.

It is an arithmetic number, because the mean of its divisors is an integer number (298350).

2^2685015 is an apocalyptic number.

2685015 is a deficient number, since it is larger than the sum of its proper divisors (2088585).

2685015 is a wasteful number, since it uses less digits than its factorization.

2685015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19903 (or 19897 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2685015 is about 1638.6015378975. The cubic root of 2685015 is about 138.9895787781.

The spelling of 2685015 in words is "two million, six hundred eighty-five thousand, fifteen".