3665286 has 12 divisors (see below), whose sum is σ = 7941492. Its totient is φ = 1221756.

The previous prime is 3665279. The next prime is 3665293. The reversal of 3665286 is 6825663.

It is an interprime number because it is at equal distance from previous prime (3665279) and next prime (3665293).

It is a d-powerful number, because it can be written as 3¹³ + 6 + 6⁷ + 5⁷ + 2¹⁵ + 8³ + 6⁸ .

It is a self number, because there is not a number n which added to its sum of digits gives 3665286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 101796 + ... + 101831.

It is an arithmetic number, because the mean of its divisors is an integer number (661791).

Almost surely, 2^3665286 is an apocalyptic number.

3665286 is an abundant number, since it is smaller than the sum of its proper divisors (4276206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3665286 is a wasteful number, since it uses less digits than its factorization.

3665286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203635 (or 203632 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 3665286 is about 1914.4936667432. The cubic root of 3665286 is about 154.1828098346.

The spelling of 3665286 in words is "three million, six hundred sixty-five thousand, two hundred eighty-six".