3645286 has 8 divisors (see below), whose sum is σ = 5484240. Its totient is φ = 1817208.

The previous prime is 3645263. The next prime is 3645289. The reversal of 3645286 is 6825463.

It is a happy number.

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

It is a super-2 number, since 2×3645286² = 26576220043592, which contains 22 as substring.

It is a d-powerful number, because it can be written as 3⁵ + 6 + 4⁶ + 5⁹ + 2¹³ + 8 + 6⁸ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3645289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1821 + ... + 3256.

It is an arithmetic number, because the mean of its divisors is an integer number (685530).

Almost surely, 2^3645286 is an apocalyptic number.

3645286 is a deficient number, since it is larger than the sum of its proper divisors (1838954).

3645286 is a wasteful number, since it uses less digits than its factorization.

3645286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5438.

The product of its digits is 34560, while the sum is 34.

The square root of 3645286 is about 1909.2632086750. The cubic root of 3645286 is about 153.9018602242.

The spelling of 3645286 in words is "three million, six hundred forty-five thousand, two hundred eighty-six".