3221766 has 12 divisors (see below), whose sum is σ = 6980532. Its totient is φ = 1073916.

The previous prime is 3221761. The next prime is 3221783. The reversal of 3221766 is 6671223.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221761) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 89476 + ... + 89511.

It is an arithmetic number, because the mean of its divisors is an integer number (581711).

Almost surely, 2^3221766 is an apocalyptic number.

3221766 is an abundant number, since it is smaller than the sum of its proper divisors (3758766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3221766 is a wasteful number, since it uses less digits than its factorization.

3221766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178995 (or 178992 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 3221766 is about 1794.9278537033. The cubic root of 3221766 is about 147.6946162249.

Adding to 3221766 its reverse (6671223), we get a palindrome (9892989).

The spelling of 3221766 in words is "three million, two hundred twenty-one thousand, seven hundred sixty-six".