3370781 has 2 divisors, whose sum is σ = 3370782. Its totient is φ = 3370780.

The previous prime is 3370769. The next prime is 3370789. The reversal of 3370781 is 1870733.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3363556 + 7225 = 1834^2 + 85^2 .

It is an emirp because it is prime and its reverse (1870733) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3370781 - 2¹⁴ = 3354397 is a prime.

It is a super-2 number, since 2×3370781² = 22724329099922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3370789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1685390 + 1685391.

It is an arithmetic number, because the mean of its divisors is an integer number (1685391).

Almost surely, 2^3370781 is an apocalyptic number.

It is an amenable number.

3370781 is a deficient number, since it is larger than the sum of its proper divisors (1).

3370781 is an equidigital number, since it uses as much as digits as its factorization.

3370781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 29.

The square root of 3370781 is about 1835.9686816501. The cubic root of 3370781 is about 149.9374702334.

The spelling of 3370781 in words is "three million, three hundred seventy thousand, seven hundred eighty-one".