68875785 has 32 divisors (see below), whose sum is σ = 133580160. Its totient is φ = 33393600.

The previous prime is 68875747. The next prime is 68875787. The reversal of 68875785 is 58757886.

It is a happy number.

68875785 is a `hidden beast` number, since 68 + 8 + 7 + 578 + 5 = 666.

It is not a de Polignac number, because 68875785 - 2⁷ = 68875657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68875787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21706 + ... + 24675.

It is an arithmetic number, because the mean of its divisors is an integer number (4174380).

Almost surely, 2^68875785 is an apocalyptic number.

It is an amenable number.

68875785 is a deficient number, since it is larger than the sum of its proper divisors (64704375).

68875785 is a wasteful number, since it uses less digits than its factorization.

68875785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46406 (or 46400 counting only the distinct ones).

The product of its digits is 3763200, while the sum is 54.

The square root of 68875785 is about 8299.1436305200. The cubic root of 68875785 is about 409.9103214530.

The spelling of 68875785 in words is "sixty-eight million, eight hundred seventy-five thousand, seven hundred eighty-five".