68839039 has 2 divisors, whose sum is σ = 68839040. Its totient is φ = 68839038.

The previous prime is 68839031. The next prime is 68839061. The reversal of 68839039 is 93093886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68839039 - 2³ = 68839031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68839039.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68839031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34419519 + 34419520.

It is an arithmetic number, because the mean of its divisors is an integer number (34419520).

Almost surely, 2^68839039 is an apocalyptic number.

68839039 is a deficient number, since it is larger than the sum of its proper divisors (1).

68839039 is an equidigital number, since it uses as much as digits as its factorization.

68839039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 68839039 is about 8296.9294922881. The cubic root of 68839039 is about 409.8374112416.

The spelling of 68839039 in words is "sixty-eight million, eight hundred thirty-nine thousand, thirty-nine".