34000639 has 2 divisors, whose sum is σ = 34000640. Its totient is φ = 34000638.

The previous prime is 34000621. The next prime is 34000643. The reversal of 34000639 is 93600043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 34000639 - 2⁷ = 34000511 is a prime.

It is equal to p_2089411 and since 34000639 and 2089411 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34000649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17000319 + 17000320.

It is an arithmetic number, because the mean of its divisors is an integer number (17000320).

Almost surely, 2^34000639 is an apocalyptic number.

34000639 is a deficient number, since it is larger than the sum of its proper divisors (1).

34000639 is an equidigital number, since it uses as much as digits as its factorization.

34000639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 34000639 is about 5831.0066883858. The cubic root of 34000639 is about 323.9632096365.

The spelling of 34000639 in words is "thirty-four million, six hundred thirty-nine", and thus it is an aban number.