334391 has 4 divisors (see below), whose sum is σ = 337152. Its totient is φ = 331632.

The previous prime is 334387. The next prime is 334393. The reversal of 334391 is 193433.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 334391 - 2² = 334387 is a prime.

It is a super-2 number, since 2×334391² = 223634681762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 334391.

It is not an unprimeable number, because it can be changed into a prime (334393) 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, 1190 + ... + 1443.

It is an arithmetic number, because the mean of its divisors is an integer number (84288).

2³³⁴³⁹¹ is an apocalyptic number.

334391 is a deficient number, since it is larger than the sum of its proper divisors (2761).

334391 is a wasteful number, since it uses less digits than its factorization.

334391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760.

The product of its digits is 972, while the sum is 23.

The square root of 334391 is about 578.2655099520. The cubic root of 334391 is about 69.4093845188.

The spelling of 334391 in words is "three hundred thirty-four thousand, three hundred ninety-one".