34430639 has 2 divisors, whose sum is σ = 34430640. Its totient is φ = 34430638.

The previous prime is 34430623. The next prime is 34430651. The reversal of 34430639 is 93603443.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34430639 - 2⁴ = 34430623 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34430699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17215319 + 17215320.

It is an arithmetic number, because the mean of its divisors is an integer number (17215320).

Almost surely, 2^34430639 is an apocalyptic number.

34430639 is a deficient number, since it is larger than the sum of its proper divisors (1).

34430639 is an equidigital number, since it uses as much as digits as its factorization.

34430639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 34430639 is about 5867.7626911797. The cubic root of 34430639 is about 325.3231940771.

The spelling of 34430639 in words is "thirty-four million, four hundred thirty thousand, six hundred thirty-nine".