68107747 has 16 divisors (see below), whose sum is σ = 72783360. Its totient is φ = 63622048.

The previous prime is 68107727. The next prime is 68107783. The reversal of 68107747 is 74770186.

It is a cyclic number.

It is not a de Polignac number, because 68107747 - 2⁷ = 68107619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68107727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145608 + ... + 146074.

It is an arithmetic number, because the mean of its divisors is an integer number (4548960).

Almost surely, 2^68107747 is an apocalyptic number.

68107747 is a deficient number, since it is larger than the sum of its proper divisors (4675613).

68107747 is a wasteful number, since it uses less digits than its factorization.

68107747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 68107747 is about 8252.7417868245. The cubic root of 68107747 is about 408.3809778457.

The spelling of 68107747 in words is "sixty-eight million, one hundred seven thousand, seven hundred forty-seven".