334639 has 4 divisors (see below), whose sum is σ = 336856. Its totient is φ = 332424.

The previous prime is 334637. The next prime is 334643. The reversal of 334639 is 936433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 936433 = 37 ⋅25309.

It is a cyclic number.

It is not a de Polignac number, because 334639 - 2¹ = 334637 is a prime.

It is a super-2 number, since 2×334639² = 223966520642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334637) 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 3 ways as a sum of consecutive naturals, for example, 864 + ... + 1189.

It is an arithmetic number, because the mean of its divisors is an integer number (84214).

2³³⁴⁶³⁹ is an apocalyptic number.

334639 is a deficient number, since it is larger than the sum of its proper divisors (2217).

334639 is a wasteful number, since it uses less digits than its factorization.

334639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2216.

The product of its digits is 5832, while the sum is 28.

The square root of 334639 is about 578.4799045775. The cubic root of 334639 is about 69.4265393602.

The spelling of 334639 in words is "three hundred thirty-four thousand, six hundred thirty-nine".