68206439 has 8 divisors (see below), whose sum is σ = 78005280. Its totient is φ = 58421376.

The previous prime is 68206433. The next prime is 68206451. The reversal of 68206439 is 93460286.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68206439 - 2¹⁶ = 68140903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68206433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11507 + ... + 16395.

It is an arithmetic number, because the mean of its divisors is an integer number (9750660).

Almost surely, 2^68206439 is an apocalyptic number.

68206439 is a deficient number, since it is larger than the sum of its proper divisors (9798841).

68206439 is a wasteful number, since it uses less digits than its factorization.

68206439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6889.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 68206439 is about 8258.7189684599. The cubic root of 68206439 is about 408.5781384005.

The spelling of 68206439 in words is "sixty-eight million, two hundred six thousand, four hundred thirty-nine".