3221797 has 4 divisors (see below), whose sum is σ = 3242476. Its totient is φ = 3201120.

The previous prime is 3221791. The next prime is 3221807. The reversal of 3221797 is 7971223.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1503076 + 1718721 = 1226^2 + 1311^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221797 - 2¹⁵ = 3189029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221791) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10104 + ... + 10417.

It is an arithmetic number, because the mean of its divisors is an integer number (810619).

Almost surely, 2^3221797 is an apocalyptic number.

It is an amenable number.

3221797 is a deficient number, since it is larger than the sum of its proper divisors (20679).

3221797 is a wasteful number, since it uses less digits than its factorization.

3221797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20678.

The product of its digits is 5292, while the sum is 31.

The square root of 3221797 is about 1794.9364891271. The cubic root of 3221797 is about 147.6950899318.

The spelling of 3221797 in words is "three million, two hundred twenty-one thousand, seven hundred ninety-seven".