68417693 has 2 divisors, whose sum is σ = 68417694. Its totient is φ = 68417692.

The previous prime is 68417677. The next prime is 68417719. The reversal of 68417693 is 39671486.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67453369 + 964324 = 8213^2 + 982^2 .

It is a cyclic number.

It is not a de Polignac number, because 68417693 - 2⁴ = 68417677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68417603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34208846 + 34208847.

It is an arithmetic number, because the mean of its divisors is an integer number (34208847).

Almost surely, 2^68417693 is an apocalyptic number.

It is an amenable number.

68417693 is a deficient number, since it is larger than the sum of its proper divisors (1).

68417693 is an equidigital number, since it uses as much as digits as its factorization.

68417693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 44.

The square root of 68417693 is about 8271.4988363658. The cubic root of 68417693 is about 408.9995297329. Note that the first 3 decimals are identical.

The spelling of 68417693 in words is "sixty-eight million, four hundred seventeen thousand, six hundred ninety-three".