343491 has 8 divisors (see below), whose sum is σ = 465744. Its totient is φ = 225120.

The previous prime is 343489. The next prime is 343517. The reversal of 343491 is 194343.

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

It is not a de Polignac number, because 343491 - 2¹ = 343489 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 756 + ... + 1121.

It is an arithmetic number, because the mean of its divisors is an integer number (58218).

2³⁴³⁴⁹¹ is an apocalyptic number.

343491 is a deficient number, since it is larger than the sum of its proper divisors (122253).

343491 is a wasteful number, since it uses less digits than its factorization.

343491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1941.

The product of its digits is 1296, while the sum is 24.

The square root of 343491 is about 586.0810524151. The cubic root of 343491 is about 70.0333854353.

The spelling of 343491 in words is "three hundred forty-three thousand, four hundred ninety-one".