349891 has 8 divisors (see below), whose sum is σ = 366080. Its totient is φ = 334152.

The previous prime is 349871. The next prime is 349903. The reversal of 349891 is 198943.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 349891 - 2⁹ = 349379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (349801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3346 + ... + 3448.

It is an arithmetic number, because the mean of its divisors is an integer number (45760).

2³⁴⁹⁸⁹¹ is an apocalyptic number.

349891 is a deficient number, since it is larger than the sum of its proper divisors (16189).

349891 is a wasteful number, since it uses less digits than its factorization.

349891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225.

The product of its digits is 7776, while the sum is 34.

The square root of 349891 is about 591.5158493227. The cubic root of 349891 is about 70.4656707938.

It can be divided in two parts, 3 and 49891, that added together give a palindrome (49894).

The spelling of 349891 in words is "three hundred forty-nine thousand, eight hundred ninety-one".