68738441 has 2 divisors, whose sum is σ = 68738442. Its totient is φ = 68738440.

The previous prime is 68738357. The next prime is 68738459. The reversal of 68738441 is 14483786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44689225 + 24049216 = 6685^2 + 4904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68738441 is a prime.

It is a super-2 number, since 2×68738441² = 9449946542220962, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (68738491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34369220 + 34369221.

It is an arithmetic number, because the mean of its divisors is an integer number (34369221).

Almost surely, 2^68738441 is an apocalyptic number.

It is an amenable number.

68738441 is a deficient number, since it is larger than the sum of its proper divisors (1).

68738441 is an equidigital number, since it uses as much as digits as its factorization.

68738441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 41.

The square root of 68738441 is about 8290.8649126614. The cubic root of 68738441 is about 409.6376751418.

The spelling of 68738441 in words is "sixty-eight million, seven hundred thirty-eight thousand, four hundred forty-one".