68396417 has 2 divisors, whose sum is σ = 68396418. Its totient is φ = 68396416.

The previous prime is 68396381. The next prime is 68396443. The reversal of 68396417 is 71469386.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50112241 + 18284176 = 7079^2 + 4276^2 .

It is a cyclic number.

It is not a de Polignac number, because 68396417 - 2⁸ = 68396161 is a prime.

It is not a weakly prime, because it can be changed into another prime (68396467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34198208 + 34198209.

It is an arithmetic number, because the mean of its divisors is an integer number (34198209).

Almost surely, 2^68396417 is an apocalyptic number.

It is an amenable number.

68396417 is a deficient number, since it is larger than the sum of its proper divisors (1).

68396417 is an equidigital number, since it uses as much as digits as its factorization.

68396417 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 68396417 is about 8270.2126333003. The cubic root of 68396417 is about 408.9571295106.

The spelling of 68396417 in words is "sixty-eight million, three hundred ninety-six thousand, four hundred seventeen".