3028681 has 2 divisors, whose sum is σ = 3028682. Its totient is φ = 3028680.

The previous prime is 3028667. The next prime is 3028691. The reversal of 3028681 is 1868203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1550025 + 1478656 = 1245^2 + 1216^2 .

It is a cyclic number.

It is not a de Polignac number, because 3028681 - 2¹¹ = 3026633 is a prime.

It is a super-2 number, since 2×3028681² = 18345817199522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3028621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1514340 + 1514341.

It is an arithmetic number, because the mean of its divisors is an integer number (1514341).

Almost surely, 2^3028681 is an apocalyptic number.

It is an amenable number.

3028681 is a deficient number, since it is larger than the sum of its proper divisors (1).

3028681 is an equidigital number, since it uses as much as digits as its factorization.

3028681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 3028681 is about 1740.3106044612. The cubic root of 3028681 is about 144.6831129648.

The spelling of 3028681 in words is "three million, twenty-eight thousand, six hundred eighty-one".