34185439 has 2 divisors, whose sum is σ = 34185440. Its totient is φ = 34185438.

The previous prime is 34185413. The next prime is 34185451. The reversal of 34185439 is 93458143.

It is a strong prime.

It is an emirp because it is prime and its reverse (93458143) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34185439 - 2⁵ = 34185407 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 34185398 and 34185407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34185409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17092719 + 17092720.

It is an arithmetic number, because the mean of its divisors is an integer number (17092720).

Almost surely, 2^34185439 is an apocalyptic number.

34185439 is a deficient number, since it is larger than the sum of its proper divisors (1).

34185439 is an equidigital number, since it uses as much as digits as its factorization.

34185439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 37.

The square root of 34185439 is about 5846.8315351137. The cubic root of 34185439 is about 324.5490835477.

The spelling of 34185439 in words is "thirty-four million, one hundred eighty-five thousand, four hundred thirty-nine".