348719221 has 4 divisors (see below), whose sum is σ = 349283200. Its totient is φ = 348155244.

The previous prime is 348719209. The next prime is 348719233. The reversal of 348719221 is 122917843.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122917843 = 331 ⋅371353.

It is an interprime number because it is at equal distance from previous prime (348719209) and next prime (348719233).

It is a cyclic number.

It is not a de Polignac number, because 348719221 - 2¹³ = 348711029 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 (348719281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281061 + ... + 282298.

It is an arithmetic number, because the mean of its divisors is an integer number (87320800).

Almost surely, 2^348719221 is an apocalyptic number.

It is an amenable number.

348719221 is a deficient number, since it is larger than the sum of its proper divisors (563979).

348719221 is an equidigital number, since it uses as much as digits as its factorization.

348719221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563978.

The product of its digits is 24192, while the sum is 37.

The square root of 348719221 is about 18674.0253025426. The cubic root of 348719221 is about 703.8692003951.

The spelling of 348719221 in words is "three hundred forty-eight million, seven hundred nineteen thousand, two hundred twenty-one".