349765613 has 2 divisors, whose sum is σ = 349765614. Its totient is φ = 349765612.

The previous prime is 349765597. The next prime is 349765673. The reversal of 349765613 is 316567943.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 304781764 + 44983849 = 17458^2 + 6707^2 .

It is an emirp because it is prime and its reverse (316567943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349765613 - 2⁴ = 349765597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349765673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174882806 + 174882807.

It is an arithmetic number, because the mean of its divisors is an integer number (174882807).

Almost surely, 2^349765613 is an apocalyptic number.

It is an amenable number.

349765613 is a deficient number, since it is larger than the sum of its proper divisors (1).

349765613 is an equidigital number, since it uses as much as digits as its factorization.

349765613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 44.

The square root of 349765613 is about 18702.0216286903. The cubic root of 349765613 is about 704.5725242476.

The spelling of 349765613 in words is "three hundred forty-nine million, seven hundred sixty-five thousand, six hundred thirteen".