348494681 has 2 divisors, whose sum is σ = 348494682. Its totient is φ = 348494680.

The previous prime is 348494659. The next prime is 348494687. The reversal of 348494681 is 186494843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 348158281 + 336400 = 18659^2 + 580^2 .

It is an emirp because it is prime and its reverse (186494843) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 348494681 - 2⁶ = 348494617 is a prime.

It is a super-2 number, since 2×348494681² = 242897085370583522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (348494687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174247340 + 174247341.

It is an arithmetic number, because the mean of its divisors is an integer number (174247341).

Almost surely, 2^348494681 is an apocalyptic number.

It is an amenable number.

348494681 is a deficient number, since it is larger than the sum of its proper divisors (1).

348494681 is an equidigital number, since it uses as much as digits as its factorization.

348494681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 47.

The square root of 348494681 is about 18668.0122401931. The cubic root of 348494681 is about 703.7180943715.

The spelling of 348494681 in words is "three hundred forty-eight million, four hundred ninety-four thousand, six hundred eighty-one".