3644285 has 16 divisors (see below), whose sum is σ = 4641840. Its totient is φ = 2741760.

The previous prime is 3644279. The next prime is 3644297. The reversal of 3644285 is 5824463.

It can be written as a sum of positive squares in 8 ways, for example, as 1530169 + 2114116 = 1237^2 + 1454^2 .

It is not a de Polignac number, because 3644285 - 2¹⁴ = 3627901 is a prime.

It is a super-2 number, since 2×3644285² = 26561626322450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5639 + ... + 6251.

It is an arithmetic number, because the mean of its divisors is an integer number (290115).

Almost surely, 2^3644285 is an apocalyptic number.

It is an amenable number.

3644285 is a deficient number, since it is larger than the sum of its proper divisors (997555).

3644285 is a wasteful number, since it uses less digits than its factorization.

3644285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688.

The product of its digits is 23040, while the sum is 32.

The square root of 3644285 is about 1909.0010476686. The cubic root of 3644285 is about 153.8877717214.

The spelling of 3644285 in words is "three million, six hundred forty-four thousand, two hundred eighty-five".