3239681 has 2 divisors, whose sum is σ = 3239682. Its totient is φ = 3239680.

The previous prime is 3239669. The next prime is 3239693. The reversal of 3239681 is 1869323.

It is a balanced prime because it is at equal distance from previous prime (3239669) and next prime (3239693).

It can be written as a sum of positive squares in only one way, i.e., 1985281 + 1254400 = 1409^2 + 1120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3239681 - 2⁶ = 3239617 is a prime.

It is a super-2 number, since 2×3239681² = 20991065963522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3239641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1619840 + 1619841.

It is an arithmetic number, because the mean of its divisors is an integer number (1619841).

Almost surely, 2^3239681 is an apocalyptic number.

It is an amenable number.

3239681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3239681 is an equidigital number, since it uses as much as digits as its factorization.

3239681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 3239681 is about 1799.9113867077. The cubic root of 3239681 is about 147.9678679939.

The spelling of 3239681 in words is "three million, two hundred thirty-nine thousand, six hundred eighty-one".