3445691 has 2 divisors, whose sum is σ = 3445692. Its totient is φ = 3445690.

The previous prime is 3445667. The next prime is 3445703. The reversal of 3445691 is 1965443.

It is a strong prime.

It is an emirp because it is prime and its reverse (1965443) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3445691 - 2⁶ = 3445627 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3445601) 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, 1722845 + 1722846.

It is an arithmetic number, because the mean of its divisors is an integer number (1722846).

Almost surely, 2^3445691 is an apocalyptic number.

3445691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3445691 is an equidigital number, since it uses as much as digits as its factorization.

3445691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 3445691 is about 1856.2572558781. The cubic root of 3445691 is about 151.0400461013.

The spelling of 3445691 in words is "three million, four hundred forty-five thousand, six hundred ninety-one".