3549913 has 2 divisors, whose sum is σ = 3549914. Its totient is φ = 3549912.

The previous prime is 3549911. The next prime is 3549947. The reversal of 3549913 is 3199453.

It is an a-pointer prime, because the next prime (3549947) can be obtained adding 3549913 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2849344 + 700569 = 1688^2 + 837^2 .

It is an emirp because it is prime and its reverse (3199453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3549913 - 2¹ = 3549911 is a prime.

Together with 3549911, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3549911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1774956 + 1774957.

It is an arithmetic number, because the mean of its divisors is an integer number (1774957).

Almost surely, 2^3549913 is an apocalyptic number.

It is an amenable number.

3549913 is a deficient number, since it is larger than the sum of its proper divisors (1).

3549913 is an equidigital number, since it uses as much as digits as its factorization.

3549913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 34.

The square root of 3549913 is about 1884.1212805974. The cubic root of 3549913 is about 152.5477840047.

The spelling of 3549913 in words is "three million, five hundred forty-nine thousand, nine hundred thirteen".