3721544 has 16 divisors (see below), whose sum is σ = 6998400. Its totient is φ = 1855312.

The previous prime is 3721537. The next prime is 3721559. The reversal of 3721544 is 4451273.

Together with 3276856 it forms an amicable pair .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4817 + ... + 5535.

It is an arithmetic number, because the mean of its divisors is an integer number (437400).

Almost surely, 2^3721544 is an apocalyptic number.

It is an amenable number.

3721544 is a deficient number, since it is larger than the sum of its proper divisors (3276856).

3721544 is a wasteful number, since it uses less digits than its factorization.

3721544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372 (or 1368 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 3721544 is about 1929.1303740287. The cubic root of 3721544 is about 154.9676519384.

The spelling of 3721544 in words is "three million, seven hundred twenty-one thousand, five hundred forty-four".