349027247 has 2 divisors, whose sum is σ = 349027248. Its totient is φ = 349027246.

The previous prime is 349027241. The next prime is 349027271. The reversal of 349027247 is 742720943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349027247 - 2⁸ = 349026991 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 349027247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349027241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174513623 + 174513624.

It is an arithmetic number, because the mean of its divisors is an integer number (174513624).

Almost surely, 2^349027247 is an apocalyptic number.

349027247 is a deficient number, since it is larger than the sum of its proper divisors (1).

349027247 is an equidigital number, since it uses as much as digits as its factorization.

349027247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 38.

The square root of 349027247 is about 18682.2709272722. The cubic root of 349027247 is about 704.0763835155.

The spelling of 349027247 in words is "three hundred forty-nine million, twenty-seven thousand, two hundred forty-seven".