3611644 has 24 divisors (see below), whose sum is σ = 6779808. Its totient is φ = 1679040.

The previous prime is 3611623. The next prime is 3611669. The reversal of 3611644 is 4461163.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2874 + ... + 3934.

It is an arithmetic number, because the mean of its divisors is an integer number (282492).

Almost surely, 2^3611644 is an apocalyptic number.

It is an amenable number.

3611644 is a deficient number, since it is larger than the sum of its proper divisors (3168164).

3611644 is a wasteful number, since it uses less digits than its factorization.

3611644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125 (or 1123 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 3611644 is about 1900.4325823349. The cubic root of 3611644 is about 153.4269476651.

The spelling of 3611644 in words is "three million, six hundred eleven thousand, six hundred forty-four".