3218085 has 24 divisors (see below), whose sum is σ = 6008184. Its totient is φ = 1584000.

The previous prime is 3218081. The next prime is 3218093. The reversal of 3218085 is 5808123.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 613089 + 2604996 = 783^2 + 1614^2 .

It is not a de Polignac number, because 3218085 - 2² = 3218081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218081) 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, 2166 + ... + 3335.

It is an arithmetic number, because the mean of its divisors is an integer number (250341).

Almost surely, 2^3218085 is an apocalyptic number.

It is an amenable number.

3218085 is a deficient number, since it is larger than the sum of its proper divisors (2790099).

3218085 is a wasteful number, since it uses less digits than its factorization.

3218085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5525 (or 5522 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 3218085 is about 1793.9021712457. The cubic root of 3218085 is about 147.6383457337.

The spelling of 3218085 in words is "three million, two hundred eighteen thousand, eighty-five".