3221471 has 8 divisors (see below), whose sum is σ = 3572688. Its totient is φ = 2880000.

The previous prime is 3221453. The next prime is 3221473. The reversal of 3221471 is 1741223.

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 3221471 - 2¹⁰ = 3220447 is a prime.

It is a super-3 number, since 3×3221471³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221473) 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, 1730 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (446586).

Almost surely, 2^3221471 is an apocalyptic number.

3221471 is a deficient number, since it is larger than the sum of its proper divisors (351217).

3221471 is a wasteful number, since it uses less digits than its factorization.

3221471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4873.

The product of its digits is 336, while the sum is 20.

The square root of 3221471 is about 1794.8456758173. The cubic root of 3221471 is about 147.6901082168.

Adding to 3221471 its reverse (1741223), we get a palindrome (4962694).

The spelling of 3221471 in words is "three million, two hundred twenty-one thousand, four hundred seventy-one".