3520613 has 2 divisors, whose sum is σ = 3520614. Its totient is φ = 3520612.

The previous prime is 3520607. The next prime is 3520663. The reversal of 3520613 is 3160253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965604 + 1555009 = 1402^2 + 1247^2 .

It is a cyclic number.

It is not a de Polignac number, because 3520613 - 2⁴ = 3520597 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a nialpdrome in base 9.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3520603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1760306 + 1760307.

It is an arithmetic number, because the mean of its divisors is an integer number (1760307).

Almost surely, 2^3520613 is an apocalyptic number.

It is an amenable number.

3520613 is a deficient number, since it is larger than the sum of its proper divisors (1).

3520613 is an equidigital number, since it uses as much as digits as its factorization.

3520613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 3520613 is about 1876.3296618665. The cubic root of 3520613 is about 152.1269282583.

Adding to 3520613 its reverse (3160253), we get a palindrome (6680866).

The spelling of 3520613 in words is "three million, five hundred twenty thousand, six hundred thirteen".