348771221 has 8 divisors (see below), whose sum is σ = 354833688. Its totient is φ = 342720000.

The previous prime is 348771211. The next prime is 348771251. The reversal of 348771221 is 122177843.

It can be written as a sum of positive squares in 4 ways, for example, as 43744996 + 305026225 = 6614^2 + 17465^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 348771221 - 2¹⁰ = 348770197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (348771211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80921 + ... + 85121.

It is an arithmetic number, because the mean of its divisors is an integer number (44354211).

Almost surely, 2^348771221 is an apocalyptic number.

It is an amenable number.

348771221 is a deficient number, since it is larger than the sum of its proper divisors (6062467).

348771221 is a wasteful number, since it uses less digits than its factorization.

348771221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5623.

The product of its digits is 18816, while the sum is 35.

The square root of 348771221 is about 18675.4175589195. The cubic root of 348771221 is about 703.9041849682.

The spelling of 348771221 in words is "three hundred forty-eight million, seven hundred seventy-one thousand, two hundred twenty-one".