3343648729 has 2 divisors, whose sum is σ = 3343648730. Its totient is φ = 3343648728.

The previous prime is 3343648717. The next prime is 3343648741. The reversal of 3343648729 is 9278463433.

It is a happy number.

3343648729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (3343648717) and next prime (3343648741).

It can be written as a sum of positive squares in only one way, i.e., 3312232704 + 31416025 = 57552^2 + 5605^2 .

It is an emirp because it is prime and its reverse (9278463433) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3343648729 - 2⁵ = 3343648697 is a prime.

It is a super-2 number, since 2×3343648729² = 22359973645886630882, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3343648129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1671824364 + 1671824365.

It is an arithmetic number, because the mean of its divisors is an integer number (1671824365).

Almost surely, 2^3343648729 is an apocalyptic number.

It is an amenable number.

3343648729 is a deficient number, since it is larger than the sum of its proper divisors (1).

3343648729 is an equidigital number, since it uses as much as digits as its factorization.

3343648729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2612736, while the sum is 49.

The square root of 3343648729 is about 57824.2918590448. The cubic root of 3343648729 is about 1495.3409108344.

The spelling of 3343648729 in words is "three billion, three hundred forty-three million, six hundred forty-eight thousand, seven hundred twenty-nine".