349247347 has 2 divisors, whose sum is σ = 349247348. Its totient is φ = 349247346.

The previous prime is 349247321. The next prime is 349247399. The reversal of 349247347 is 743742943.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 349247347 - 2¹⁹ = 348723059 is a prime.

It is equal to p_18765088 and since 349247347 and 18765088 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (349247747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174623673 + 174623674.

It is an arithmetic number, because the mean of its divisors is an integer number (174623674).

Almost surely, 2^349247347 is an apocalyptic number.

349247347 is a deficient number, since it is larger than the sum of its proper divisors (1).

349247347 is an equidigital number, since it uses as much as digits as its factorization.

349247347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 43.

The square root of 349247347 is about 18688.1606103972. The cubic root of 349247347 is about 704.2243515706.

The spelling of 349247347 in words is "three hundred forty-nine million, two hundred forty-seven thousand, three hundred forty-seven".