349676549 has 2 divisors, whose sum is σ = 349676550. Its totient is φ = 349676548.

The previous prime is 349676543. The next prime is 349676557. The reversal of 349676549 is 945676943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296459524 + 53217025 = 17218^2 + 7295^2 .

It is an emirp because it is prime and its reverse (945676943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349676549 - 2⁴ = 349676533 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 349676549.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349676543) 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, 174838274 + 174838275.

It is an arithmetic number, because the mean of its divisors is an integer number (174838275).

Almost surely, 2^349676549 is an apocalyptic number.

It is an amenable number.

349676549 is a deficient number, since it is larger than the sum of its proper divisors (1).

349676549 is an equidigital number, since it uses as much as digits as its factorization.

349676549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 53.

The square root of 349676549 is about 18699.6403441350. The cubic root of 349676549 is about 704.5127152669.

The spelling of 349676549 in words is "three hundred forty-nine million, six hundred seventy-six thousand, five hundred forty-nine".