68793187 has 2 divisors, whose sum is σ = 68793188. Its totient is φ = 68793186.

The previous prime is 68793181. The next prime is 68793199. The reversal of 68793187 is 78139786.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68793187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68793187.

It is not a weakly prime, because it can be changed into another prime (68793181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34396593 + 34396594.

It is an arithmetic number, because the mean of its divisors is an integer number (34396594).

Almost surely, 2^68793187 is an apocalyptic number.

68793187 is a deficient number, since it is larger than the sum of its proper divisors (1).

68793187 is an equidigital number, since it uses as much as digits as its factorization.

68793187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 68793187 is about 8294.1658411199. The cubic root of 68793187 is about 409.7463968062.

The spelling of 68793187 in words is "sixty-eight million, seven hundred ninety-three thousand, one hundred eighty-seven".