3380521 has 4 divisors (see below), whose sum is σ = 3388500. Its totient is φ = 3372544.

The previous prime is 3380497. The next prime is 3380527. The reversal of 3380521 is 1250833.

3380521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1250833 = 193 ⋅6481.

It can be written as a sum of positive squares in 2 ways, for example, as 1587600 + 1792921 = 1260^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 3380521 - 2¹⁵ = 3347753 is a prime.

It is a super-2 number, since 2×3380521² = 22855844462882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3380492 and 3380501.

It is not an unprimeable number, because it can be changed into a prime (3380527) 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 3 ways as a sum of consecutive naturals, for example, 3316 + ... + 4213.

It is an arithmetic number, because the mean of its divisors is an integer number (847125).

Almost surely, 2^3380521 is an apocalyptic number.

It is an amenable number.

3380521 is a deficient number, since it is larger than the sum of its proper divisors (7979).

3380521 is an equidigital number, since it uses as much as digits as its factorization.

3380521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7978.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3380521 is about 1838.6193189456. The cubic root of 3380521 is about 150.0817480329.

The spelling of 3380521 in words is "three million, three hundred eighty thousand, five hundred twenty-one".