3520691 has 2 divisors, whose sum is σ = 3520692. Its totient is φ = 3520690.

The previous prime is 3520669. The next prime is 3520697. The reversal of 3520691 is 1960253.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3520691 - 2¹⁸ = 3258547 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3520691.

It is not a weakly prime, because it can be changed into another prime (3520697) 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, 1760345 + 1760346.

It is an arithmetic number, because the mean of its divisors is an integer number (1760346).

Almost surely, 2^3520691 is an apocalyptic number.

3520691 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520691 is an equidigital number, since it uses as much as digits as its factorization.

3520691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 3520691 is about 1876.3504470114. The cubic root of 3520691 is about 152.1280517191.

The spelling of 3520691 in words is "three million, five hundred twenty thousand, six hundred ninety-one".