3313561 has 2 divisors, whose sum is σ = 3313562. Its totient is φ = 3313560.

The previous prime is 3313489. The next prime is 3313571. The reversal of 3313561 is 1653133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3168400 + 145161 = 1780^2 + 381^2 .

It is a cyclic number.

It is not a de Polignac number, because 3313561 - 2⁷ = 3313433 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3313571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1656780 + 1656781.

It is an arithmetic number, because the mean of its divisors is an integer number (1656781).

Almost surely, 2^3313561 is an apocalyptic number.

It is an amenable number.

3313561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3313561 is an equidigital number, since it uses as much as digits as its factorization.

3313561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 810, while the sum is 22.

The square root of 3313561 is about 1820.3189281002. The cubic root of 3313561 is about 149.0842128638.

Adding to 3313561 its reverse (1653133), we get a palindrome (4966694).

The spelling of 3313561 in words is "three million, three hundred thirteen thousand, five hundred sixty-one".