68858609 has 12 divisors (see below), whose sum is σ = 71237376. Its totient is φ = 66554712.

The previous prime is 68858597. The next prime is 68858617. The reversal of 68858609 is 90685886.

It is not a de Polignac number, because 68858609 - 2⁴ = 68858593 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 (68858659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 308672 + ... + 308894.

It is an arithmetic number, because the mean of its divisors is an integer number (5936448).

Almost surely, 2^68858609 is an apocalyptic number.

It is an amenable number.

68858609 is a deficient number, since it is larger than the sum of its proper divisors (2378767).

68858609 is a wasteful number, since it uses less digits than its factorization.

68858609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 68858609 is about 8298.1087604345. The cubic root of 68858609 is about 409.8762446242.

The spelling of 68858609 in words is "sixty-eight million, eight hundred fifty-eight thousand, six hundred nine".