3343091621 has 2 divisors, whose sum is σ = 3343091622. Its totient is φ = 3343091620.

The previous prime is 3343091593. The next prime is 3343091627. The reversal of 3343091621 is 1261903433.

3343091621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3079029121 + 264062500 = 55489^2 + 16250^2 .

It is a cyclic number.

It is not a de Polignac number, because 3343091621 - 2¹⁴ = 3343075237 is a prime.

It is a super-2 number, since 2×3343091621² = 22352523172800815282, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3343091627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671545810 + 1671545811.

It is an arithmetic number, because the mean of its divisors is an integer number (1671545811).

Almost surely, 2^3343091621 is an apocalyptic number.

It is an amenable number.

3343091621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3343091621 is an equidigital number, since it uses as much as digits as its factorization.

3343091621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 3343091621 is about 57819.4744095793. The cubic root of 3343091621 is about 1495.2578565900.

The spelling of 3343091621 in words is "three billion, three hundred forty-three million, ninety-one thousand, six hundred twenty-one".