3343521 has 4 divisors (see below), whose sum is σ = 4458032. Its totient is φ = 2229012.

The previous prime is 3343511. The next prime is 3343531. The reversal of 3343521 is 1253433.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1253433 = 3 ⋅417811.

It is an interprime number because it is at equal distance from previous prime (3343511) and next prime (3343531).

It is not a de Polignac number, because 3343521 - 2¹⁵ = 3310753 is a prime.

It is a super-2 number, since 2×3343521² = 22358265354882, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3343511) 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, 557251 + ... + 557256.

It is an arithmetic number, because the mean of its divisors is an integer number (1114508).

Almost surely, 2^3343521 is an apocalyptic number.

It is an amenable number.

3343521 is a deficient number, since it is larger than the sum of its proper divisors (1114511).

3343521 is a wasteful number, since it uses less digits than its factorization.

3343521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114510.

The product of its digits is 1080, while the sum is 21.

The square root of 3343521 is about 1828.5297372479. The cubic root of 3343521 is about 149.5321869676.

Adding to 3343521 its reverse (1253433), we get a palindrome (4596954).

The spelling of 3343521 in words is "three million, three hundred forty-three thousand, five hundred twenty-one".