35769221 has 2 divisors, whose sum is σ = 35769222. Its totient is φ = 35769220.

The previous prime is 35769203. The next prime is 35769247. The reversal of 35769221 is 12296753.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28206721 + 7562500 = 5311^2 + 2750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35769221 is a prime.

It is a Sophie Germain 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 (35769271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17884610 + 17884611.

It is an arithmetic number, because the mean of its divisors is an integer number (17884611).

Almost surely, 2^35769221 is an apocalyptic number.

It is an amenable number.

35769221 is a deficient number, since it is larger than the sum of its proper divisors (1).

35769221 is an equidigital number, since it uses as much as digits as its factorization.

35769221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 35.

The square root of 35769221 is about 5980.7374963294. The cubic root of 35769221 is about 329.4856419268.

The spelling of 35769221 in words is "thirty-five million, seven hundred sixty-nine thousand, two hundred twenty-one".