68893771 has 2 divisors, whose sum is σ = 68893772. Its totient is φ = 68893770.

The previous prime is 68893757. The next prime is 68893787. The reversal of 68893771 is 17739886.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68893771 - 2¹⁵ = 68861003 is a prime.

It is not a weakly prime, because it can be changed into another prime (68893751) 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, 34446885 + 34446886.

It is an arithmetic number, because the mean of its divisors is an integer number (34446886).

Almost surely, 2^68893771 is an apocalyptic number.

68893771 is a deficient number, since it is larger than the sum of its proper divisors (1).

68893771 is an equidigital number, since it uses as much as digits as its factorization.

68893771 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 68893771 is about 8300.2271655660. The cubic root of 68893771 is about 409.9459992333.

The spelling of 68893771 in words is "sixty-eight million, eight hundred ninety-three thousand, seven hundred seventy-one".