68795381 has 2 divisors, whose sum is σ = 68795382. Its totient is φ = 68795380.

The previous prime is 68795351. The next prime is 68795383. The reversal of 68795381 is 18359786.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46799281 + 21996100 = 6841^2 + 4690^2 .

It is a cyclic number.

It is not a de Polignac number, because 68795381 - 2⁶ = 68795317 is a prime.

It is a super-2 number, since 2×68795381² = 9465608893870322, which contains 22 as substring.

Together with 68795383, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68795383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34397690 + 34397691.

It is an arithmetic number, because the mean of its divisors is an integer number (34397691).

Almost surely, 2^68795381 is an apocalyptic number.

It is an amenable number.

68795381 is a deficient number, since it is larger than the sum of its proper divisors (1).

68795381 is an equidigital number, since it uses as much as digits as its factorization.

68795381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 47.

The square root of 68795381 is about 8294.2981017082. The cubic root of 68795381 is about 409.7507527319.

The spelling of 68795381 in words is "sixty-eight million, seven hundred ninety-five thousand, three hundred eighty-one".