69685061 has 2 divisors, whose sum is σ = 69685062. Its totient is φ = 69685060.

The previous prime is 69685037. The next prime is 69685079. The reversal of 69685061 is 16058696.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53436100 + 16248961 = 7310^2 + 4031^2 .

It is a cyclic number.

It is not a de Polignac number, because 69685061 - 2²² = 65490757 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69685001) 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, 34842530 + 34842531.

It is an arithmetic number, because the mean of its divisors is an integer number (34842531).

Almost surely, 2^69685061 is an apocalyptic number.

It is an amenable number.

69685061 is a deficient number, since it is larger than the sum of its proper divisors (1).

69685061 is an equidigital number, since it uses as much as digits as its factorization.

69685061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 69685061 is about 8347.7578426785. The cubic root of 69685061 is about 411.5095276455.

The spelling of 69685061 in words is "sixty-nine million, six hundred eighty-five thousand, sixty-one".