3585366821 has 2 divisors, whose sum is σ = 3585366822. Its totient is φ = 3585366820.

The previous prime is 3585366817. The next prime is 3585366833. The reversal of 3585366821 is 1286635853.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3437476900 + 147889921 = 58630^2 + 12161^2 .

It is a cyclic number.

It is not a de Polignac number, because 3585366821 - 2² = 3585366817 is a prime.

It is a super-2 number, since 2×3585366821² = 25709710482255292082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3585366121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1792683410 + 1792683411.

It is an arithmetic number, because the mean of its divisors is an integer number (1792683411).

Almost surely, 2^3585366821 is an apocalyptic number.

It is an amenable number.

3585366821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3585366821 is an equidigital number, since it uses as much as digits as its factorization.

3585366821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 47.

The square root of 3585366821 is about 59877.9326713941. The cubic root of 3585366821 is about 1530.5394627509.

The spelling of 3585366821 in words is "three billion, five hundred eighty-five million, three hundred sixty-six thousand, eight hundred twenty-one".