348128617 has 4 divisors (see below), whose sum is σ = 348710400. Its totient is φ = 347546836.

The previous prime is 348128603. The next prime is 348128623. The reversal of 348128617 is 716821843.

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: 716821843 = 347 ⋅2065769.

It is a cyclic number.

It is not a de Polignac number, because 348128617 - 2⁷ = 348128489 is a prime.

It is a super-3 number, since 3×348128617³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 348128617.

It is not an unprimeable number, because it can be changed into a prime (348128017) 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, 289993 + ... + 291190.

It is an arithmetic number, because the mean of its divisors is an integer number (87177600).

Almost surely, 2^348128617 is an apocalyptic number.

It is an amenable number.

348128617 is a deficient number, since it is larger than the sum of its proper divisors (581783).

348128617 is an equidigital number, since it uses as much as digits as its factorization.

348128617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581782.

The product of its digits is 64512, while the sum is 40.

The square root of 348128617 is about 18658.2050851629. The cubic root of 348128617 is about 703.4716093940.

The spelling of 348128617 in words is "three hundred forty-eight million, one hundred twenty-eight thousand, six hundred seventeen".