339749 has 2 divisors, whose sum is σ = 339750. Its totient is φ = 339748.

The previous prime is 339727. The next prime is 339751. The reversal of 339749 is 947933.

339749 is nontrivially palindromic in base 16.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302500 + 37249 = 550^2 + 193^2 .

It is a cyclic number.

It is not a de Polignac number, because 339749 - 2¹² = 335653 is a prime.

Together with 339751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (339769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169874 + 169875.

It is an arithmetic number, because the mean of its divisors is an integer number (169875).

2³³⁹⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

339749 is a deficient number, since it is larger than the sum of its proper divisors (1).

339749 is an equidigital number, since it uses as much as digits as its factorization.

339749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20412, while the sum is 35.

The square root of 339749 is about 582.8799190228. The cubic root of 339749 is about 69.7781411179.

The spelling of 339749 in words is "three hundred thirty-nine thousand, seven hundred forty-nine".