354839 has 2 divisors, whose sum is σ = 354840. Its totient is φ = 354838.

The previous prime is 354833. The next prime is 354847. The reversal of 354839 is 938453.

It is a weak prime.

It is an emirp because it is prime and its reverse (938453) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354839 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (354833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177419 + 177420.

It is an arithmetic number, because the mean of its divisors is an integer number (177420).

2³⁵⁴⁸³⁹ is an apocalyptic number.

354839 is a deficient number, since it is larger than the sum of its proper divisors (1).

354839 is an equidigital number, since it uses as much as digits as its factorization.

354839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 32.

The square root of 354839 is about 595.6836408699. The cubic root of 354839 is about 70.7962817373.

The spelling of 354839 in words is "three hundred fifty-four thousand, eight hundred thirty-nine".