68707775 has 12 divisors (see below), whose sum is σ = 86044344. Its totient is φ = 54420000.

The previous prime is 68707747. The next prime is 68707789. The reversal of 68707775 is 57770786.

It is not a de Polignac number, because 68707775 - 2¹⁶ = 68642239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11081 + ... + 16130.

It is an arithmetic number, because the mean of its divisors is an integer number (7170362).

Almost surely, 2^68707775 is an apocalyptic number.

68707775 is a deficient number, since it is larger than the sum of its proper divisors (17336569).

68707775 is a wasteful number, since it uses less digits than its factorization.

68707775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27322 (or 27317 counting only the distinct ones).

The product of its (nonzero) digits is 576240, while the sum is 47.

The square root of 68707775 is about 8289.0153214963. The cubic root of 68707775 is about 409.5767494196.

The spelling of 68707775 in words is "sixty-eight million, seven hundred seven thousand, seven hundred seventy-five".