3643874 has 16 divisors (see below), whose sum is σ = 5919480. Its totient is φ = 1672320.

The previous prime is 3643873. The next prime is 3643883. The reversal of 3643874 is 4783463.

It can be written as a sum of positive squares in 4 ways, for example, as 1194649 + 2449225 = 1093^2 + 1565^2 .

It is not an unprimeable number, because it can be changed into a prime (3643873) 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 in 7 ways as a sum of consecutive naturals, for example, 6734 + ... + 7254.

Almost surely, 2^3643874 is an apocalyptic number.

3643874 is a deficient number, since it is larger than the sum of its proper divisors (2275606).

3643874 is a wasteful number, since it uses less digits than its factorization.

3643874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805.

The product of its digits is 48384, while the sum is 35.

The square root of 3643874 is about 1908.8933967092. The cubic root of 3643874 is about 153.8819863843.

The spelling of 3643874 in words is "three million, six hundred forty-three thousand, eight hundred seventy-four".