348664439 has 2 divisors, whose sum is σ = 348664440. Its totient is φ = 348664438.

The previous prime is 348664411. The next prime is 348664483. The reversal of 348664439 is 934466843.

It is a weak prime.

It is an emirp because it is prime and its reverse (934466843) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348664439 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 348664393 and 348664402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348664489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174332219 + 174332220.

It is an arithmetic number, because the mean of its divisors is an integer number (174332220).

Almost surely, 2^348664439 is an apocalyptic number.

348664439 is a deficient number, since it is larger than the sum of its proper divisors (1).

348664439 is an equidigital number, since it uses as much as digits as its factorization.

348664439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 47.

The square root of 348664439 is about 18672.5584481613. The cubic root of 348664439 is about 703.8323403851.

The spelling of 348664439 in words is "three hundred forty-eight million, six hundred sixty-four thousand, four hundred thirty-nine".