68688065 has 16 divisors (see below), whose sum is σ = 84031680. Its totient is φ = 53887680.

The previous prime is 68688049. The next prime is 68688107. The reversal of 68688065 is 56088686.

It is not a de Polignac number, because 68688065 - 2⁴ = 68688049 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 126695 + ... + 127235.

It is an arithmetic number, because the mean of its divisors is an integer number (5251980).

Almost surely, 2^68688065 is an apocalyptic number.

It is an amenable number.

68688065 is a deficient number, since it is larger than the sum of its proper divisors (15343615).

68688065 is a wasteful number, since it uses less digits than its factorization.

68688065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992.

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 68688065 is about 8287.8263133345. The cubic root of 68688065 is about 409.5375809762.

The spelling of 68688065 in words is "sixty-eight million, six hundred eighty-eight thousand, sixty-five".