68395487 has 2 divisors, whose sum is σ = 68395488. Its totient is φ = 68395486.

The previous prime is 68395463. The next prime is 68395501. The reversal of 68395487 is 78459386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68395487 - 2¹⁸ = 68133343 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 (68395417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34197743 + 34197744.

It is an arithmetic number, because the mean of its divisors is an integer number (34197744).

Almost surely, 2^68395487 is an apocalyptic number.

68395487 is a deficient number, since it is larger than the sum of its proper divisors (1).

68395487 is an equidigital number, since it uses as much as digits as its factorization.

68395487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1451520, while the sum is 50.

The square root of 68395487 is about 8270.1564072271. The cubic root of 68395487 is about 408.9552759445.

The spelling of 68395487 in words is "sixty-eight million, three hundred ninety-five thousand, four hundred eighty-seven".