3389355821 has 2 divisors, whose sum is σ = 3389355822. Its totient is φ = 3389355820.

The previous prime is 3389355811. The next prime is 3389355899. The reversal of 3389355821 is 1285539833.

It is a happy number.

3389355821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3386076100 + 3279721 = 58190^2 + 1811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3389355821 is a prime.

It is a super-2 number, since 2×3389355821² = 22975465762693168082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3389355811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1694677910 + 1694677911.

It is an arithmetic number, because the mean of its divisors is an integer number (1694677911).

Almost surely, 2^3389355821 is an apocalyptic number.

It is an amenable number.

3389355821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3389355821 is an equidigital number, since it uses as much as digits as its factorization.

3389355821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777600, while the sum is 47.

The square root of 3389355821 is about 58218.1743186782. The cubic root of 3389355821 is about 1502.1237799164.

The spelling of 3389355821 in words is "three billion, three hundred eighty-nine million, three hundred fifty-five thousand, eight hundred twenty-one".