348540839 has 2 divisors, whose sum is σ = 348540840. Its totient is φ = 348540838.

The previous prime is 348540833. The next prime is 348540847. The reversal of 348540839 is 938045843.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 348540839 - 2⁸ = 348540583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348540839.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348540833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174270419 + 174270420.

It is an arithmetic number, because the mean of its divisors is an integer number (174270420).

Almost surely, 2^348540839 is an apocalyptic number.

348540839 is a deficient number, since it is larger than the sum of its proper divisors (1).

348540839 is an equidigital number, since it uses as much as digits as its factorization.

348540839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 348540839 is about 18669.2484851426. The cubic root of 348540839 is about 703.7491620727.

The spelling of 348540839 in words is "three hundred forty-eight million, five hundred forty thousand, eight hundred thirty-nine".