68657795 has 8 divisors (see below), whose sum is σ = 82449024. Its totient is φ = 54886464.

The previous prime is 68657791. The next prime is 68657801. The reversal of 68657795 is 59775686.

It is a happy number.

It is a Cunningham number, because it is equal to 8286²-1.

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 68657795 - 2² = 68657791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68657791) 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 7 ways as a sum of consecutive naturals, for example, 4142 + ... + 12428.

It is an arithmetic number, because the mean of its divisors is an integer number (10306128).

Almost surely, 2^68657795 is an apocalyptic number.

68657795 is a deficient number, since it is larger than the sum of its proper divisors (13791229).

68657795 is a wasteful number, since it uses less digits than its factorization.

68657795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9949.

The product of its digits is 3175200, while the sum is 53.

The square root of 68657795 is about 8285.9999396573. Note that the first 4 decimals coincide. The cubic root of 68657795 is about 409.4774127163.

The spelling of 68657795 in words is "sixty-eight million, six hundred fifty-seven thousand, seven hundred ninety-five".