348838681 has 2 divisors, whose sum is σ = 348838682. Its totient is φ = 348838680.

The previous prime is 348838673. The next prime is 348838703. The reversal of 348838681 is 186838843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286286400 + 62552281 = 16920^2 + 7909^2 .

It is a cyclic number.

It is not a de Polignac number, because 348838681 - 2³ = 348838673 is a prime.

It is a super-2 number, since 2×348838681² = 243376850723639522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (348838781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174419340 + 174419341.

It is an arithmetic number, because the mean of its divisors is an integer number (174419341).

Almost surely, 2^348838681 is an apocalyptic number.

It is an amenable number.

348838681 is a deficient number, since it is larger than the sum of its proper divisors (1).

348838681 is an equidigital number, since it uses as much as digits as its factorization.

348838681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 884736, while the sum is 49.

The square root of 348838681 is about 18677.2235891741. The cubic root of 348838681 is about 703.9495655427.

The spelling of 348838681 in words is "three hundred forty-eight million, eight hundred thirty-eight thousand, six hundred eighty-one".