348809393 has 4 divisors (see below), whose sum is σ = 350898240. Its totient is φ = 346720548.

The previous prime is 348809387. The next prime is 348809401. The reversal of 348809393 is 393908843.

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: 393908843 = 4463 ⋅88261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-348809393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348809333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1044173 + ... + 1044506.

It is an arithmetic number, because the mean of its divisors is an integer number (87724560).

Almost surely, 2^348809393 is an apocalyptic number.

It is an amenable number.

348809393 is a deficient number, since it is larger than the sum of its proper divisors (2088847).

348809393 is a wasteful number, since it uses less digits than its factorization.

348809393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088846.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 348809393 is about 18676.4395161390. The cubic root of 348809393 is about 703.9298641228.

The spelling of 348809393 in words is "three hundred forty-eight million, eight hundred nine thousand, three hundred ninety-three".