68872417 has 2 divisors, whose sum is σ = 68872418. Its totient is φ = 68872416.

The previous prime is 68872403. The next prime is 68872439. The reversal of 68872417 is 71427886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44675856 + 24196561 = 6684^2 + 4919^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68872417 is a prime.

It is not a weakly prime, because it can be changed into another prime (68872217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34436208 + 34436209.

It is an arithmetic number, because the mean of its divisors is an integer number (34436209).

Almost surely, 2^68872417 is an apocalyptic number.

It is an amenable number.

68872417 is a deficient number, since it is larger than the sum of its proper divisors (1).

68872417 is an equidigital number, since it uses as much as digits as its factorization.

68872417 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 43.

The square root of 68872417 is about 8298.9407155371. The cubic root of 68872417 is about 409.9036398572.

The spelling of 68872417 in words is "sixty-eight million, eight hundred seventy-two thousand, four hundred seventeen".