3221481 has 8 divisors (see below), whose sum is σ = 4314240. Its totient is φ = 2138192.

The previous prime is 3221473. The next prime is 3221497. The reversal of 3221481 is 1841223.

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 3221481 - 2³ = 3221473 is a prime.

It is a super-2 number, since 2×3221481² = 20755879666722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3221401) 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, 1530 + ... + 2963.

It is an arithmetic number, because the mean of its divisors is an integer number (539280).

Almost surely, 2^3221481 is an apocalyptic number.

It is an amenable number.

3221481 is a deficient number, since it is larger than the sum of its proper divisors (1092759).

3221481 is a wasteful number, since it uses less digits than its factorization.

3221481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4735.

The product of its digits is 384, while the sum is 21.

The square root of 3221481 is about 1794.8484615699. The cubic root of 3221481 is about 147.6902610352.

The spelling of 3221481 in words is "three million, two hundred twenty-one thousand, four hundred eighty-one".