348276206921 has 2 divisors, whose sum is σ = 348276206922. Its totient is φ = 348276206920.

The previous prime is 348276206893. The next prime is 348276206987. The reversal of 348276206921 is 129602672843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 340196893696 + 8079313225 = 583264^2 + 89885^2 .

It is a cyclic number.

It is not a de Polignac number, because 348276206921 - 2³⁰ = 347202465097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 348276206921.

It is not a weakly prime, because it can be changed into another prime (348276206321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174138103460 + 174138103461.

It is an arithmetic number, because the mean of its divisors is an integer number (174138103461).

Almost surely, 2^348276206921 is an apocalyptic number.

It is an amenable number.

348276206921 is a deficient number, since it is larger than the sum of its proper divisors (1).

348276206921 is an equidigital number, since it uses as much as digits as its factorization.

348276206921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 50.

The spelling of 348276206921 in words is "three hundred forty-eight billion, two hundred seventy-six million, two hundred six thousand, nine hundred twenty-one".