3221961 has 8 divisors (see below), whose sum is σ = 4305504. Its totient is φ = 2143200.

The previous prime is 3221957. The next prime is 3221971. The reversal of 3221961 is 1691223.

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

It is not a de Polignac number, because 3221961 - 2² = 3221957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3221941) 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, 910 + ... + 2696.

It is an arithmetic number, because the mean of its divisors is an integer number (538188).

Almost surely, 2^3221961 is an apocalyptic number.

It is an amenable number.

3221961 is a deficient number, since it is larger than the sum of its proper divisors (1083543).

3221961 is a wasteful number, since it uses less digits than its factorization.

3221961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2391.

The product of its digits is 648, while the sum is 24.

The square root of 3221961 is about 1794.9821726134. The cubic root of 3221961 is about 147.6975959436.

The spelling of 3221961 in words is "three million, two hundred twenty-one thousand, nine hundred sixty-one".