348409 has 4 divisors (see below), whose sum is σ = 359680. Its totient is φ = 337140.

The previous prime is 348407. The next prime is 348419. The reversal of 348409 is 904843.

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: 904843 = 23 ⋅39341.

It is a cyclic number.

It is not a de Polignac number, because 348409 - 2¹ = 348407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (348401) 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, 5589 + ... + 5650.

It is an arithmetic number, because the mean of its divisors is an integer number (89920).

2³⁴⁸⁴⁰⁹ is an apocalyptic number.

It is an amenable number.

348409 is a deficient number, since it is larger than the sum of its proper divisors (11271).

348409 is a wasteful number, since it uses less digits than its factorization.

348409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 348409 is about 590.2618063199. The cubic root of 348409 is about 70.3660417535.

It can be divided in two parts, 348 and 409, that added together give a palindrome (757).

The spelling of 348409 in words is "three hundred forty-eight thousand, four hundred nine".