68946887 has 2 divisors, whose sum is σ = 68946888. Its totient is φ = 68946886.

The previous prime is 68946863. The next prime is 68946907. The reversal of 68946887 is 78864986.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68946887 - 2¹⁴ = 68930503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68946817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34473443 + 34473444.

It is an arithmetic number, because the mean of its divisors is an integer number (34473444).

Almost surely, 2^68946887 is an apocalyptic number.

68946887 is a deficient number, since it is larger than the sum of its proper divisors (1).

68946887 is an equidigital number, since it uses as much as digits as its factorization.

68946887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4644864, while the sum is 56.

The square root of 68946887 is about 8303.4262205429. The cubic root of 68946887 is about 410.0513261146.

The spelling of 68946887 in words is "sixty-eight million, nine hundred forty-six thousand, eight hundred eighty-seven".