68589378 has 48 divisors (see below), whose sum is σ = 174597696. Its totient is φ = 19185120.

The previous prime is 68589377. The next prime is 68589383. The reversal of 68589378 is 87398586.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68589371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10750 + ... + 15897.

It is an arithmetic number, because the mean of its divisors is an integer number (3637452).

Almost surely, 2^68589378 is an apocalyptic number.

68589378 is an abundant number, since it is smaller than the sum of its proper divisors (106008318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68589378 is a wasteful number, since it uses less digits than its factorization.

68589378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26679 (or 26676 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 54.

The square root of 68589378 is about 8281.8704409089. The cubic root of 68589378 is about 409.3413537446.

The spelling of 68589378 in words is "sixty-eight million, five hundred eighty-nine thousand, three hundred seventy-eight".