68068679 has 4 divisors (see below), whose sum is σ = 77792784. Its totient is φ = 58344576.

The previous prime is 68068673. The next prime is 68068681. The reversal of 68068679 is 97686086.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68068679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68068673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4862042 + ... + 4862055.

It is an arithmetic number, because the mean of its divisors is an integer number (19448196).

Almost surely, 2^68068679 is an apocalyptic number.

68068679 is a deficient number, since it is larger than the sum of its proper divisors (9724105).

68068679 is an equidigital number, since it uses as much as digits as its factorization.

68068679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9724104.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 68068679 is about 8250.3744763495. The cubic root of 68068679 is about 408.3028776767.

The spelling of 68068679 in words is "sixty-eight million, sixty-eight thousand, six hundred seventy-nine".