68392901 has 2 divisors, whose sum is σ = 68392902. Its totient is φ = 68392900.

The previous prime is 68392867. The next prime is 68392903. The reversal of 68392901 is 10929386.

It is a Cunningham number, because it is equal to 8270²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68392900 + 1 = 8270^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 68392901 - 2¹⁰ = 68391877 is a prime.

Together with 68392903, 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 (68392903) 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, 34196450 + 34196451.

It is an arithmetic number, because the mean of its divisors is an integer number (34196451).

Almost surely, 2^68392901 is an apocalyptic number.

It is an amenable number.

68392901 is a deficient number, since it is larger than the sum of its proper divisors (1).

68392901 is an equidigital number, since it uses as much as digits as its factorization.

68392901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 68392901 is about 8270.0000604595. Note that the first 4 decimals coincide. The cubic root of 68392901 is about 408.9501217463.

The spelling of 68392901 in words is "sixty-eight million, three hundred ninety-two thousand, nine hundred one".