349091 has 4 divisors (see below), whose sum is σ = 360384. Its totient is φ = 337800.

The previous prime is 349081. The next prime is 349093. The reversal of 349091 is 190943.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 190943 = 79 ⋅2417.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-349091 is a prime.

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 349091.

It is not an unprimeable number, because it can be changed into a prime (349093) 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, 5600 + ... + 5661.

It is an arithmetic number, because the mean of its divisors is an integer number (90096).

2³⁴⁹⁰⁹¹ is an apocalyptic number.

349091 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

349091 is a deficient number, since it is larger than the sum of its proper divisors (11293).

349091 is a wasteful number, since it uses less digits than its factorization.

349091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11292.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 349091 is about 590.8392336330. The cubic root of 349091 is about 70.4119249557.

It can be divided in two parts, 3 and 49091, that added together give a palindrome (49094).

The spelling of 349091 in words is "three hundred forty-nine thousand, ninety-one".