3644327 has 4 divisors (see below), whose sum is σ = 3802800. Its totient is φ = 3485856.

The previous prime is 3644321. The next prime is 3644339. The reversal of 3644327 is 7234463.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7234463 = 293 ⋅24691.

It is a cyclic number.

It is not a de Polignac number, because 3644327 - 2⁸ = 3644071 is a prime.

It is a super-2 number, since 2×3644327² = 26562238565858, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3644327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644321) 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, 79202 + ... + 79247.

It is an arithmetic number, because the mean of its divisors is an integer number (950700).

Almost surely, 2^3644327 is an apocalyptic number.

3644327 is a deficient number, since it is larger than the sum of its proper divisors (158473).

3644327 is a wasteful number, since it uses less digits than its factorization.

3644327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158472.

The product of its digits is 12096, while the sum is 29.

The square root of 3644327 is about 1909.0120481548. The cubic root of 3644327 is about 153.8883628993. Note that the first 3 decimals are identical.

The spelling of 3644327 in words is "three million, six hundred forty-four thousand, three hundred twenty-seven".