349676069 has 2 divisors, whose sum is σ = 349676070. Its totient is φ = 349676068.

The previous prime is 349676051. The next prime is 349676071. The reversal of 349676069 is 960676943.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343360900 + 6315169 = 18530^2 + 2513^2 .

It is a cyclic number.

It is not a de Polignac number, because 349676069 - 2⁸ = 349675813 is a prime.

It is a super-2 number, since 2×349676069² = 244546706462585522, which contains 22 as substring.

Together with 349676071, 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 (349676029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174838034 + 174838035.

It is an arithmetic number, because the mean of its divisors is an integer number (174838035).

Almost surely, 2^349676069 is an apocalyptic number.

It is an amenable number.

349676069 is a deficient number, since it is larger than the sum of its proper divisors (1).

349676069 is an equidigital number, since it uses as much as digits as its factorization.

349676069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 50.

The square root of 349676069 is about 18699.6275096591. The cubic root of 349676069 is about 704.5123929059.

The spelling of 349676069 in words is "three hundred forty-nine million, six hundred seventy-six thousand, sixty-nine".