68626689 has 16 divisors (see below), whose sum is σ = 96768000. Its totient is φ = 43140816.

The previous prime is 68626681. The next prime is 68626703. The reversal of 68626689 is 98662686.

It is not a de Polignac number, because 68626689 - 2³ = 68626681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68626681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10012 + ... + 15410.

It is an arithmetic number, because the mean of its divisors is an integer number (6048000).

Almost surely, 2^68626689 is an apocalyptic number.

It is an amenable number.

68626689 is a deficient number, since it is larger than the sum of its proper divisors (28141311).

68626689 is a wasteful number, since it uses less digits than its factorization.

68626689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5644.

The product of its digits is 1492992, while the sum is 51.

The square root of 68626689 is about 8284.1227055132. The cubic root of 68626689 is about 409.4155642962.

The spelling of 68626689 in words is "sixty-eight million, six hundred twenty-six thousand, six hundred eighty-nine".