2002685 has 8 divisors (see below), whose sum is σ = 2544696. Its totient is φ = 1507840.

The previous prime is 2002681. The next prime is 2002723. The reversal of 2002685 is 5862002.

2002685 = 226² + 227² + ... + 259².

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 190969 + 1811716 = 437^2 + 1346^2 .

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

It is not a de Polignac number, because 2002685 - 2² = 2002681 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2002685.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002681) 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, 11696 + ... + 11865.

It is an arithmetic number, because the mean of its divisors is an integer number (318087).

2^2002685 is an apocalyptic number.

It is an amenable number.

2002685 is a deficient number, since it is larger than the sum of its proper divisors (542011).

2002685 is a wasteful number, since it uses less digits than its factorization.

2002685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23583.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2002685 is about 1415.1625348348. The cubic root of 2002685 is about 126.0484612446.

Adding to 2002685 its reverse (5862002), we get a palindrome (7864687).

The spelling of 2002685 in words is "two million, two thousand, six hundred eighty-five".