3912644 has 18 divisors (see below), whose sum is σ = 6989934. Its totient is φ = 1916320.

The previous prime is 3912611. The next prime is 3912647. The reversal of 3912644 is 4462193.

It can be written as a sum of positive squares in only one way, i.e., 3564544 + 348100 = 1888^2 + 590^2 .

It is not an unprimeable number, because it can be changed into a prime (3912647) 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 5 ways as a sum of consecutive naturals, for example, 13784 + ... + 14064.

Almost surely, 2^3912644 is an apocalyptic number.

It is an amenable number.

3912644 is a deficient number, since it is larger than the sum of its proper divisors (3077290).

3912644 is a wasteful number, since it uses less digits than its factorization.

3912644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 342 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 3912644 is about 1978.0404444803. The cubic root of 3912644 is about 157.5760143696.

The spelling of 3912644 in words is "three million, nine hundred twelve thousand, six hundred forty-four".