239429 has 2 divisors, whose sum is σ = 239430. Its totient is φ = 239428.

The previous prime is 239423. The next prime is 239431. The reversal of 239429 is 924932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148225 + 91204 = 385^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239429 is a prime.

Together with 239431, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2³ + 3¹¹ + 4⁷ + 9⁴ + 2¹⁵ + 9⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119714 + 119715.

It is an arithmetic number, because the mean of its divisors is an integer number (119715).

2²³⁹⁴²⁹ is an apocalyptic number.

It is an amenable number.

239429 is a deficient number, since it is larger than the sum of its proper divisors (1).

239429 is an equidigital number, since it uses as much as digits as its factorization.

239429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The square root of 239429 is about 489.3148270797. The cubic root of 239429 is about 62.0953268222.

The spelling of 239429 in words is "two hundred thirty-nine thousand, four hundred twenty-nine".