3222997 has 4 divisors (see below), whose sum is σ = 3228460. Its totient is φ = 3217536.

The previous prime is 3222991. The next prime is 3223007. The reversal of 3222997 is 7992223.

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 579121 + 2643876 = 761^2 + 1626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3222997 is a prime.

It is a Duffinian number.

3222997 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3222991) 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, 1722 + ... + 3067.

It is an arithmetic number, because the mean of its divisors is an integer number (807115).

Almost surely, 2^3222997 is an apocalyptic number.

3222997 is the 1037-th hex number.

It is an amenable number.

3222997 is a deficient number, since it is larger than the sum of its proper divisors (5463).

3222997 is an equidigital number, since it uses as much as digits as its factorization.

3222997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462.

The product of its digits is 13608, while the sum is 34.

The square root of 3222997 is about 1795.2707316725. The cubic root of 3222997 is about 147.7134246384.

It can be divided in two parts, 32229 and 97, that multiplied together give a palindrome (3126213).

The spelling of 3222997 in words is "three million, two hundred twenty-two thousand, nine hundred ninety-seven".