3317521 has 2 divisors, whose sum is σ = 3317522. Its totient is φ = 3317520.

The previous prime is 3317507. The next prime is 3317537. The reversal of 3317521 is 1257133.

3317521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2131600 + 1185921 = 1460^2 + 1089^2 .

It is a cyclic number.

It is not a de Polignac number, because 3317521 - 2⁹ = 3317009 is a prime.

It is a super-2 number, since 2×3317521² = 22011891170882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3317492 and 3317501.

It is not a weakly prime, because it can be changed into another prime (3317551) 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 as a sum of consecutive naturals, namely, 1658760 + 1658761.

It is an arithmetic number, because the mean of its divisors is an integer number (1658761).

Almost surely, 2^3317521 is an apocalyptic number.

It is an amenable number.

3317521 is a deficient number, since it is larger than the sum of its proper divisors (1).

3317521 is an equidigital number, since it uses as much as digits as its factorization.

3317521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 22.

The square root of 3317521 is about 1821.4063247941. The cubic root of 3317521 is about 149.1435788506.

The spelling of 3317521 in words is "three million, three hundred seventeen thousand, five hundred twenty-one".