348638413 has 2 divisors, whose sum is σ = 348638414. Its totient is φ = 348638412.

The previous prime is 348638401. The next prime is 348638443. The reversal of 348638413 is 314836843.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244046884 + 104591529 = 15622^2 + 10227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348638413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (348638443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 174319206 + 174319207.

It is an arithmetic number, because the mean of its divisors is an integer number (174319207).

Almost surely, 2^348638413 is an apocalyptic number.

It is an amenable number.

348638413 is a deficient number, since it is larger than the sum of its proper divisors (1).

348638413 is an equidigital number, since it uses as much as digits as its factorization.

348638413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 40.

The square root of 348638413 is about 18671.8615301207. The cubic root of 348638413 is about 703.8148274661.

The spelling of 348638413 in words is "three hundred forty-eight million, six hundred thirty-eight thousand, four hundred thirteen".