3613523 has 2 divisors, whose sum is σ = 3613524. Its totient is φ = 3613522.

The previous prime is 3613517. The next prime is 3613543. The reversal of 3613523 is 3253163.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3613523 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3613513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806761 + 1806762.

It is an arithmetic number, because the mean of its divisors is an integer number (1806762).

Almost surely, 2^3613523 is an apocalyptic number.

3613523 is a deficient number, since it is larger than the sum of its proper divisors (1).

3613523 is an equidigital number, since it uses as much as digits as its factorization.

3613523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1620, while the sum is 23.

The square root of 3613523 is about 1900.9268791829. The cubic root of 3613523 is about 153.4535504397.

Adding to 3613523 its reverse (3253163), we get a palindrome (6866686).

The spelling of 3613523 in words is "three million, six hundred thirteen thousand, five hundred twenty-three".