35040821 has 2 divisors, whose sum is σ = 35040822. Its totient is φ = 35040820.

The previous prime is 35040809. The next prime is 35040827. The reversal of 35040821 is 12804053.

35040821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32604100 + 2436721 = 5710^2 + 1561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35040821 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35040827) 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, 17520410 + 17520411.

It is an arithmetic number, because the mean of its divisors is an integer number (17520411).

Almost surely, 2^35040821 is an apocalyptic number.

It is an amenable number.

35040821 is a deficient number, since it is larger than the sum of its proper divisors (1).

35040821 is an equidigital number, since it uses as much as digits as its factorization.

35040821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 35040821 is about 5919.5287819218. The cubic root of 35040821 is about 327.2337513232.

Adding to 35040821 its reverse (12804053), we get a palindrome (47844874).

The spelling of 35040821 in words is "thirty-five million, forty thousand, eight hundred twenty-one".