3123644 has 12 divisors (see below), whose sum is σ = 5493768. Its totient is φ = 1554000.

The previous prime is 3123643. The next prime is 3123671. The reversal of 3123644 is 4463213.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1007 + ... + 2694.

It is an arithmetic number, because the mean of its divisors is an integer number (457814).

Almost surely, 2^3123644 is an apocalyptic number.

It is an amenable number.

3123644 is a deficient number, since it is larger than the sum of its proper divisors (2370124).

3123644 is a wasteful number, since it uses less digits than its factorization.

3123644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916 (or 3914 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 3123644 is about 1767.3833766334. The cubic root of 3123644 is about 146.1797373550.

Adding to 3123644 its reverse (4463213), we get a palindrome (7586857).

The spelling of 3123644 in words is "three million, one hundred twenty-three thousand, six hundred forty-four".