3223447 has 4 divisors (see below), whose sum is σ = 3238936. Its totient is φ = 3207960.

The previous prime is 3223439. The next prime is 3223459. The reversal of 3223447 is 7443223.

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

It is a cyclic number.

It is not a de Polignac number, because 3223447 - 2³ = 3223439 is a prime.

It is a super-2 number, since 2×3223447² = 20781221123618, which contains 22 as substring.

It is a Duffinian number.

3223447 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7428 + ... + 7849.

It is an arithmetic number, because the mean of its divisors is an integer number (809734).

Almost surely, 2^3223447 is an apocalyptic number.

3223447 is a deficient number, since it is larger than the sum of its proper divisors (15489).

3223447 is a wasteful number, since it uses less digits than its factorization.

3223447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15488.

The product of its digits is 4032, while the sum is 25.

The square root of 3223447 is about 1795.3960565847. The cubic root of 3223447 is about 147.7202989801.

The spelling of 3223447 in words is "three million, two hundred twenty-three thousand, four hundred forty-seven".