3337561 has 2 divisors, whose sum is σ = 3337562. Its totient is φ = 3337560.

The previous prime is 3337501. The next prime is 3337577. The reversal of 3337561 is 1657333.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2890000 + 447561 = 1700^2 + 669^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3337561 is a prime.

It is a super-2 number, since 2×3337561² = 22278626857442, which contains 22 as substring.

3337561 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3337501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1668780 + 1668781.

It is an arithmetic number, because the mean of its divisors is an integer number (1668781).

Almost surely, 2^3337561 is an apocalyptic number.

It is an amenable number.

3337561 is a deficient number, since it is larger than the sum of its proper divisors (1).

3337561 is an equidigital number, since it uses as much as digits as its factorization.

3337561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5670, while the sum is 28.

The square root of 3337561 is about 1826.8992856750. The cubic root of 3337561 is about 149.4432844900.

The spelling of 3337561 in words is "three million, three hundred thirty-seven thousand, five hundred sixty-one".