3428681 has 2 divisors, whose sum is σ = 3428682. Its totient is φ = 3428680.

The previous prime is 3428671. The next prime is 3428717. The reversal of 3428681 is 1868243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3312400 + 116281 = 1820^2 + 341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3428681 - 2⁶ = 3428617 is a prime.

It is a super-2 number, since 2×3428681² = 23511706799522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3428651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1714340 + 1714341.

It is an arithmetic number, because the mean of its divisors is an integer number (1714341).

Almost surely, 2^3428681 is an apocalyptic number.

It is an amenable number.

3428681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3428681 is an equidigital number, since it uses as much as digits as its factorization.

3428681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 32.

The square root of 3428681 is about 1851.6697869761. The cubic root of 3428681 is about 150.7910945356.

The spelling of 3428681 in words is "three million, four hundred twenty-eight thousand, six hundred eighty-one".