3662644 has 12 divisors (see below), whose sum is σ = 6449184. Its totient is φ = 1820024.

The previous prime is 3662641. The next prime is 3662651. The reversal of 3662644 is 4462663.

It is a super-2 number, since 2×3662644² = 26829922141472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3662641) 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 3 ways as a sum of consecutive naturals, for example, 2074 + ... + 3409.

It is an arithmetic number, because the mean of its divisors is an integer number (537432).

Almost surely, 2^3662644 is an apocalyptic number.

It is an amenable number.

3662644 is a deficient number, since it is larger than the sum of its proper divisors (2786540).

3662644 is a wasteful number, since it uses less digits than its factorization.

3662644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5654 (or 5652 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 3662644 is about 1913.8035426867. The cubic root of 3662644 is about 154.1457550729.

The spelling of 3662644 in words is "three million, six hundred sixty-two thousand, six hundred forty-four".