3743221 has 8 divisors (see below), whose sum is σ = 3878784. Its totient is φ = 3610080.

The previous prime is 3743203. The next prime is 3743237. The reversal of 3743221 is 1223473.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3743221 - 2⁹ = 3742709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3743192 and 3743201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3743321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2886 + ... + 3976.

It is an arithmetic number, because the mean of its divisors is an integer number (484848).

Almost surely, 2^3743221 is an apocalyptic number.

It is an amenable number.

3743221 is a deficient number, since it is larger than the sum of its proper divisors (135563).

3743221 is a wasteful number, since it uses less digits than its factorization.

3743221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211.

The product of its digits is 1008, while the sum is 22.

The square root of 3743221 is about 1934.7405510817. The cubic root of 3743221 is about 155.2679513662.

Adding to 3743221 its reverse (1223473), we get a palindrome (4966694).

The spelling of 3743221 in words is "three million, seven hundred forty-three thousand, two hundred twenty-one".