35319821 has 2 divisors, whose sum is σ = 35319822. Its totient is φ = 35319820.

The previous prime is 35319811. The next prime is 35319839. The reversal of 35319821 is 12891353.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23174596 + 12145225 = 4814^2 + 3485^2 .

It is an emirp because it is prime and its reverse (12891353) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 35319821 - 2¹⁰ = 35318797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (35319811) 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, 17659910 + 17659911.

It is an arithmetic number, because the mean of its divisors is an integer number (17659911).

Almost surely, 2^35319821 is an apocalyptic number.

It is an amenable number.

35319821 is a deficient number, since it is larger than the sum of its proper divisors (1).

35319821 is an equidigital number, since it uses as much as digits as its factorization.

35319821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 32.

The square root of 35319821 is about 5943.0481236483. The cubic root of 35319821 is about 328.0999503296.

The spelling of 35319821 in words is "thirty-five million, three hundred nineteen thousand, eight hundred twenty-one".