68342887 has 2 divisors, whose sum is σ = 68342888. Its totient is φ = 68342886.

The previous prime is 68342863. The next prime is 68342909. The reversal of 68342887 is 78824386.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68342887 - 2⁷ = 68342759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68342837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34171443 + 34171444.

It is an arithmetic number, because the mean of its divisors is an integer number (34171444).

Almost surely, 2^68342887 is an apocalyptic number.

68342887 is a deficient number, since it is larger than the sum of its proper divisors (1).

68342887 is an equidigital number, since it uses as much as digits as its factorization.

68342887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 46.

The square root of 68342887 is about 8266.9756864285. The cubic root of 68342887 is about 408.8504124746.

The spelling of 68342887 in words is "sixty-eight million, three hundred forty-two thousand, eight hundred eighty-seven".