68356387 has 8 divisors (see below), whose sum is σ = 75047472. Its totient is φ = 61744800.

The previous prime is 68356367. The next prime is 68356403. The reversal of 68356387 is 78365386.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68356387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68356367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18064 + ... + 21517.

It is an arithmetic number, because the mean of its divisors is an integer number (9380934).

Almost surely, 2^68356387 is an apocalyptic number.

68356387 is a deficient number, since it is larger than the sum of its proper divisors (6691085).

68356387 is a wasteful number, since it uses less digits than its factorization.

68356387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39749.

The product of its digits is 725760, while the sum is 46.

The square root of 68356387 is about 8267.7921478470. The cubic root of 68356387 is about 408.8773312339.

The spelling of 68356387 in words is "sixty-eight million, three hundred fifty-six thousand, three hundred eighty-seven".