349392647 has 2 divisors, whose sum is σ = 349392648. Its totient is φ = 349392646.

The previous prime is 349392643. The next prime is 349392679. The reversal of 349392647 is 746293943.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (746293943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 349392647 - 2² = 349392643 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (349392643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174696323 + 174696324.

It is an arithmetic number, because the mean of its divisors is an integer number (174696324).

Almost surely, 2^349392647 is an apocalyptic number.

349392647 is a deficient number, since it is larger than the sum of its proper divisors (1).

349392647 is an equidigital number, since it uses as much as digits as its factorization.

349392647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 979776, while the sum is 47.

The square root of 349392647 is about 18692.0476941399. The cubic root of 349392647 is about 704.3219992810.

The spelling of 349392647 in words is "three hundred forty-nine million, three hundred ninety-two thousand, six hundred forty-seven".