68681395 has 8 divisors (see below), whose sum is σ = 82492704. Its totient is φ = 54895104.

The previous prime is 68681387. The next prime is 68681407. The reversal of 68681395 is 59318686.

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 68681395 - 2³ = 68681387 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442 + ... + 11728.

It is an arithmetic number, because the mean of its divisors is an integer number (10311588).

Almost surely, 2^68681395 is an apocalyptic number.

68681395 is a deficient number, since it is larger than the sum of its proper divisors (13811309).

68681395 is a wasteful number, since it uses less digits than its factorization.

68681395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12509.

The product of its digits is 311040, while the sum is 46.

The square root of 68681395 is about 8287.4239061363. The cubic root of 68681395 is about 409.5243244079.

The spelling of 68681395 in words is "sixty-eight million, six hundred eighty-one thousand, three hundred ninety-five".