3497221 has 8 divisors (see below), whose sum is σ = 4304384. Its totient is φ = 2766960.

The previous prime is 3497213. The next prime is 3497227. The reversal of 3497221 is 1227943.

3497221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 3497221 - 2³ = 3497213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3497221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3497227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19125 + ... + 19306.

It is an arithmetic number, because the mean of its divisors is an integer number (538048).

Almost surely, 2^3497221 is an apocalyptic number.

It is an amenable number.

3497221 is a deficient number, since it is larger than the sum of its proper divisors (807163).

3497221 is a wasteful number, since it uses less digits than its factorization.

3497221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38451.

The product of its digits is 3024, while the sum is 28.

The square root of 3497221 is about 1870.0858269074. The cubic root of 3497221 is about 151.7892537596.

The spelling of 3497221 in words is "three million, four hundred ninety-seven thousand, two hundred twenty-one".