3423200821 has 2 divisors, whose sum is σ = 3423200822. Its totient is φ = 3423200820.

The previous prime is 3423200771. The next prime is 3423200831. The reversal of 3423200821 is 1280023243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2663592100 + 759608721 = 51610^2 + 27561^2 .

It is a cyclic number.

It is not a de Polignac number, because 3423200821 - 2⁹ = 3423200309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3423200831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1711600410 + 1711600411.

It is an arithmetic number, because the mean of its divisors is an integer number (1711600411).

Almost surely, 2^3423200821 is an apocalyptic number.

It is an amenable number.

3423200821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3423200821 is an equidigital number, since it uses as much as digits as its factorization.

3423200821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 3423200821 is about 58508.1261108233. The cubic root of 3423200821 is about 1507.1071349418.

The spelling of 3423200821 in words is "three billion, four hundred twenty-three million, two hundred thousand, eight hundred twenty-one".