3644356 has 6 divisors (see below), whose sum is σ = 6377630. Its totient is φ = 1822176.

The previous prime is 3644351. The next prime is 3644357. The reversal of 3644356 is 6534463.

It can be written as a sum of positive squares in only one way, i.e., 3496900 + 147456 = 1870^2 + 384^2 .

It is not an unprimeable number, because it can be changed into a prime (3644351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455541 + ... + 455548.

Almost surely, 2^3644356 is an apocalyptic number.

It is an amenable number.

3644356 is a deficient number, since it is larger than the sum of its proper divisors (2733274).

3644356 is a wasteful number, since it uses less digits than its factorization.

3644356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 911093 (or 911091 counting only the distinct ones).

The product of its digits is 25920, while the sum is 31.

The square root of 3644356 is about 1909.0196436915. The cubic root of 3644356 is about 153.8887710909. Note that the first 3 decimals are identical.

The spelling of 3644356 in words is "three million, six hundred forty-four thousand, three hundred fifty-six".