34420439 has 2 divisors, whose sum is σ = 34420440. Its totient is φ = 34420438.

The previous prime is 34420417. The next prime is 34420459. The reversal of 34420439 is 93402443.

It is a strong prime.

It is an emirp because it is prime and its reverse (93402443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34420439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34420459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17210219 + 17210220.

It is an arithmetic number, because the mean of its divisors is an integer number (17210220).

Almost surely, 2^34420439 is an apocalyptic number.

34420439 is a deficient number, since it is larger than the sum of its proper divisors (1).

34420439 is an equidigital number, since it uses as much as digits as its factorization.

34420439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 34420439 is about 5866.8934709947. The cubic root of 34420439 is about 325.2910654807.

The spelling of 34420439 in words is "thirty-four million, four hundred twenty thousand, four hundred thirty-nine".