34390039 has 2 divisors, whose sum is σ = 34390040. Its totient is φ = 34390038.

The previous prime is 34390033. The next prime is 34390051. The reversal of 34390039 is 93009343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 34390039 - 2²⁵ = 835607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34390033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17195019 + 17195020.

It is an arithmetic number, because the mean of its divisors is an integer number (17195020).

Almost surely, 2^34390039 is an apocalyptic number.

34390039 is a deficient number, since it is larger than the sum of its proper divisors (1).

34390039 is an equidigital number, since it uses as much as digits as its factorization.

34390039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 34390039 is about 5864.3020897631. The cubic root of 34390039 is about 325.1952719990.

The spelling of 34390039 in words is "thirty-four million, three hundred ninety thousand, thirty-nine".