68647417 has 2 divisors, whose sum is σ = 68647418. Its totient is φ = 68647416.

The previous prime is 68647363. The next prime is 68647427. The reversal of 68647417 is 71474686.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64304361 + 4343056 = 8019^2 + 2084^2 .

It is a cyclic number.

It is not a de Polignac number, because 68647417 - 2⁷ = 68647289 is a prime.

It is not a weakly prime, because it can be changed into another prime (68647427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34323708 + 34323709.

It is an arithmetic number, because the mean of its divisors is an integer number (34323709).

Almost surely, 2^68647417 is an apocalyptic number.

It is an amenable number.

68647417 is a deficient number, since it is larger than the sum of its proper divisors (1).

68647417 is an equidigital number, since it uses as much as digits as its factorization.

68647417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 225792, while the sum is 43.

The square root of 68647417 is about 8285.3736789598. The cubic root of 68647417 is about 409.4567800956.

The spelling of 68647417 in words is "sixty-eight million, six hundred forty-seven thousand, four hundred seventeen".