68386417 has 6 divisors (see below), whose sum is σ = 75168674. Its totient is φ = 62169360.

The previous prime is 68386411. The next prime is 68386421. The reversal of 68386417 is 71468386.

It can be written as a sum of positive squares in only one way, i.e., 51279921 + 17106496 = 7161^2 + 4136^2 .

It is not a de Polignac number, because 68386417 - 2⁷ = 68386289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68386411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 282468 + ... + 282709.

Almost surely, 2^68386417 is an apocalyptic number.

It is an amenable number.

68386417 is a deficient number, since it is larger than the sum of its proper divisors (6782257).

68386417 is a wasteful number, since it uses less digits than its factorization.

68386417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565199 (or 565188 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 68386417 is about 8269.6080318235. The cubic root of 68386417 is about 408.9371978105.

The spelling of 68386417 in words is "sixty-eight million, three hundred eighty-six thousand, four hundred seventeen".