3643924 has 6 divisors (see below), whose sum is σ = 6376874. Its totient is φ = 1821960.

The previous prime is 3643921. The next prime is 3643951. The reversal of 3643924 is 4293463.

3643924 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 3572100 + 71824 = 1890^2 + 268^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3643921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455487 + ... + 455494.

Almost surely, 2^3643924 is an apocalyptic number.

It is an amenable number.

3643924 is a deficient number, since it is larger than the sum of its proper divisors (2732950).

3643924 is a wasteful number, since it uses less digits than its factorization.

3643924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910985 (or 910983 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

The square root of 3643924 is about 1908.9064932573. The cubic root of 3643924 is about 153.8826902199.

It can be divided in two parts, 36439 and 24, that added together give a palindrome (36463).

The spelling of 3643924 in words is "three million, six hundred forty-three thousand, nine hundred twenty-four".