68820041 has 2 divisors, whose sum is σ = 68820042. Its totient is φ = 68820040.

The previous prime is 68820013. The next prime is 68820043. The reversal of 68820041 is 14002886.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57456400 + 11363641 = 7580^2 + 3371^2 .

It is a cyclic number.

It is not a de Polignac number, because 68820041 - 2⁶ = 68819977 is a prime.

Together with 68820043, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68819986 and 68820013.

It is not a weakly prime, because it can be changed into another prime (68820043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34410020 + 34410021.

It is an arithmetic number, because the mean of its divisors is an integer number (34410021).

Almost surely, 2^68820041 is an apocalyptic number.

It is an amenable number.

68820041 is a deficient number, since it is larger than the sum of its proper divisors (1).

68820041 is an equidigital number, since it uses as much as digits as its factorization.

68820041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 68820041 is about 8295.7845319174. The cubic root of 68820041 is about 409.7997058561.

The spelling of 68820041 in words is "sixty-eight million, eight hundred twenty thousand, forty-one".