3349689281 has 2 divisors, whose sum is σ = 3349689282. Its totient is φ = 3349689280.

The previous prime is 3349689271. The next prime is 3349689311. The reversal of 3349689281 is 1829869433.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1746487681 + 1603201600 = 41791^2 + 40040^2 .

It is a cyclic number.

It is not a de Polignac number, because 3349689281 - 2¹⁰ = 3349688257 is a prime.

It is a super-2 number, since 2×3349689281² = 22440836558492593922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3349689271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1674844640 + 1674844641.

It is an arithmetic number, because the mean of its divisors is an integer number (1674844641).

Almost surely, 2^3349689281 is an apocalyptic number.

It is an amenable number.

3349689281 is a deficient number, since it is larger than the sum of its proper divisors (1).

3349689281 is an equidigital number, since it uses as much as digits as its factorization.

3349689281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 53.

The square root of 3349689281 is about 57876.5002483737. The cubic root of 3349689281 is about 1496.2408509205.

The spelling of 3349689281 in words is "three billion, three hundred forty-nine million, six hundred eighty-nine thousand, two hundred eighty-one".