3613539 has 12 divisors (see below), whose sum is σ = 4905096. Its totient is φ = 2366208.

The previous prime is 3613523. The next prime is 3613543. The reversal of 3613539 is 9353163.

It is not a de Polignac number, because 3613539 - 2⁴ = 3613523 is a prime.

3613539 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3613559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18627 + ... + 18819.

It is an arithmetic number, because the mean of its divisors is an integer number (408758).

Almost surely, 2^3613539 is an apocalyptic number.

3613539 is a deficient number, since it is larger than the sum of its proper divisors (1291557).

3613539 is an equidigital number, since it uses as much as digits as its factorization.

3613539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 275 counting only the distinct ones).

The product of its digits is 7290, while the sum is 30.

The square root of 3613539 is about 1900.9310876515. The cubic root of 3613539 is about 153.4537769272.

The spelling of 3613539 in words is "three million, six hundred thirteen thousand, five hundred thirty-nine".