346909 has 4 divisors (see below), whose sum is σ = 362016. Its totient is φ = 331804.

The previous prime is 346903. The next prime is 346933. The reversal of 346909 is 909643.

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.

It is a cyclic number.

It is not a de Polignac number, because 346909 - 2⁵ = 346877 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 (346903) 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, 7519 + ... + 7564.

It is an arithmetic number, because the mean of its divisors is an integer number (90504).

2³⁴⁶⁹⁰⁹ is an apocalyptic number.

It is an amenable number.

346909 is a deficient number, since it is larger than the sum of its proper divisors (15107).

346909 is a wasteful number, since it uses less digits than its factorization.

346909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15106.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 346909 is about 588.9898131547. The cubic root of 346909 is about 70.2649145353.

The spelling of 346909 in words is "three hundred forty-six thousand, nine hundred nine".