68381395 has 32 divisors (see below), whose sum is σ = 90839232. Its totient is φ = 49201152.

The previous prime is 68381393. The next prime is 68381419. The reversal of 68381395 is 59318386.

It is a cyclic number.

It is not a de Polignac number, because 68381395 - 2¹ = 68381393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68381393) 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 31 ways as a sum of consecutive naturals, for example, 193539 + ... + 193891.

It is an arithmetic number, because the mean of its divisors is an integer number (2838726).

Almost surely, 2^68381395 is an apocalyptic number.

68381395 is a deficient number, since it is larger than the sum of its proper divisors (22457837).

68381395 is a wasteful number, since it uses less digits than its factorization.

68381395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471.

The product of its digits is 155520, while the sum is 43.

The square root of 68381395 is about 8269.3043842877. The cubic root of 68381395 is about 408.9271873778.

The spelling of 68381395 in words is "sixty-eight million, three hundred eighty-one thousand, three hundred ninety-five".