68842867 has 2 divisors, whose sum is σ = 68842868. Its totient is φ = 68842866.

The previous prime is 68842859. The next prime is 68842883. The reversal of 68842867 is 76824886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68842867 - 2³ = 68842859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68842867.

It is not a weakly prime, because it can be changed into another prime (68845867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34421433 + 34421434.

It is an arithmetic number, because the mean of its divisors is an integer number (34421434).

Almost surely, 2^68842867 is an apocalyptic number.

68842867 is a deficient number, since it is larger than the sum of its proper divisors (1).

68842867 is an equidigital number, since it uses as much as digits as its factorization.

68842867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1032192, while the sum is 49.

The square root of 68842867 is about 8297.1601768316. The cubic root of 68842867 is about 409.8450078445.

The spelling of 68842867 in words is "sixty-eight million, eight hundred forty-two thousand, eight hundred sixty-seven".