3468221 has 4 divisors (see below), whose sum is σ = 3672252. Its totient is φ = 3264192.

The previous prime is 3468209. The next prime is 3468233. The reversal of 3468221 is 1228643.

3468221 = T₃₄₃ + T₃₄₄ + ... + T₃₉₃.

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

It is an interprime number because it is at equal distance from previous prime (3468209) and next prime (3468233).

It can be written as a sum of positive squares in 2 ways, for example, as 2805625 + 662596 = 1675^2 + 814^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3468221 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 (3468281) 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, 101990 + ... + 102023.

It is an arithmetic number, because the mean of its divisors is an integer number (918063).

Almost surely, 2^3468221 is an apocalyptic number.

It is an amenable number.

3468221 is a deficient number, since it is larger than the sum of its proper divisors (204031).

3468221 is a wasteful number, since it uses less digits than its factorization.

3468221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204030.

The product of its digits is 2304, while the sum is 26.

The square root of 3468221 is about 1862.3160311827. The cubic root of 3468221 is about 151.3685280862.

The spelling of 3468221 in words is "three million, four hundred sixty-eight thousand, two hundred twenty-one".