3113639 has 2 divisors, whose sum is σ = 3113640. Its totient is φ = 3113638.

The previous prime is 3113633. The next prime is 3113641. The reversal of 3113639 is 9363113.

It is a strong prime.

It is an emirp because it is prime and its reverse (9363113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3113639 is a prime.

Together with 3113641, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556819 + 1556820.

It is an arithmetic number, because the mean of its divisors is an integer number (1556820).

Almost surely, 2^3113639 is an apocalyptic number.

3113639 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113639 is an equidigital number, since it uses as much as digits as its factorization.

3113639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1458, while the sum is 26.

The square root of 3113639 is about 1764.5506510157. The cubic root of 3113639 is about 146.0234996889.

The spelling of 3113639 in words is "three million, one hundred thirteen thousand, six hundred thirty-nine".