342389 has 2 divisors, whose sum is σ = 342390. Its totient is φ = 342388.

The previous prime is 342379. The next prime is 342413. The reversal of 342389 is 983243.

342389 is an esthetic number in base 8, because in such base its adjacent digits differ by 1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 339889 + 2500 = 583^2 + 50^2 .

It is an emirp because it is prime and its reverse (983243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342389 - 2⁴ = 342373 is a prime.

It is equal to p₂₉₃₇₈ and since 342389 and 29378 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342319) 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 as a sum of consecutive naturals, namely, 171194 + 171195.

It is an arithmetic number, because the mean of its divisors is an integer number (171195).

2³⁴²³⁸⁹ is an apocalyptic number.

It is an amenable number.

342389 is a deficient number, since it is larger than the sum of its proper divisors (1).

342389 is an equidigital number, since it uses as much as digits as its factorization.

342389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 342389 is about 585.1401541511. The cubic root of 342389 is about 69.9584106694.

The spelling of 342389 in words is "three hundred forty-two thousand, three hundred eighty-nine".