68825837 has 2 divisors, whose sum is σ = 68825838. Its totient is φ = 68825836.

The previous prime is 68825831. The next prime is 68825849. The reversal of 68825837 is 73852886.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67584841 + 1240996 = 8221^2 + 1114^2 .

It is a cyclic number.

It is not a de Polignac number, because 68825837 - 2²⁴ = 52048621 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 68825791 and 68825800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68825831) 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, 34412918 + 34412919.

It is an arithmetic number, because the mean of its divisors is an integer number (34412919).

Almost surely, 2^68825837 is an apocalyptic number.

It is an amenable number.

68825837 is a deficient number, since it is larger than the sum of its proper divisors (1).

68825837 is an equidigital number, since it uses as much as digits as its factorization.

68825837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 47.

The square root of 68825837 is about 8296.1338586115. The cubic root of 68825837 is about 409.8112099295.

The spelling of 68825837 in words is "sixty-eight million, eight hundred twenty-five thousand, eight hundred thirty-seven".