3453834821 has 2 divisors, whose sum is σ = 3453834822. Its totient is φ = 3453834820.

The previous prime is 3453834803. The next prime is 3453834827. The reversal of 3453834821 is 1284383543.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2344012225 + 1109822596 = 48415^2 + 33314^2 .

It is a cyclic number.

It is not a de Polignac number, because 3453834821 - 2¹⁰ = 3453833797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3453834827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1726917410 + 1726917411.

It is an arithmetic number, because the mean of its divisors is an integer number (1726917411).

Almost surely, 2^3453834821 is an apocalyptic number.

It is an amenable number.

3453834821 is a deficient number, since it is larger than the sum of its proper divisors (1).

3453834821 is an equidigital number, since it uses as much as digits as its factorization.

3453834821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 41.

The square root of 3453834821 is about 58769.3357202547. The cubic root of 3453834821 is about 1511.5894584290.

The spelling of 3453834821 in words is "three billion, four hundred fifty-three million, eight hundred thirty-four thousand, eight hundred twenty-one".