6612539 has 2 divisors, whose sum is σ = 6612540. Its totient is φ = 6612538.

The previous prime is 6612499. The next prime is 6612547. The reversal of 6612539 is 9352166.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6612539 is a prime.

It is not a weakly prime, because it can be changed into another prime (6614539) 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, 3306269 + 3306270.

It is an arithmetic number, because the mean of its divisors is an integer number (3306270).

Almost surely, 2^6612539 is an apocalyptic number.

6612539 is a deficient number, since it is larger than the sum of its proper divisors (1).

6612539 is an equidigital number, since it uses as much as digits as its factorization.

6612539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 32.

The square root of 6612539 is about 2571.4857573006. The cubic root of 6612539 is about 187.6964601537.

The spelling of 6612539 in words is "six million, six hundred twelve thousand, five hundred thirty-nine".