3020681 has 4 divisors (see below), whose sum is σ = 3050112. Its totient is φ = 2991252.

The previous prime is 3020657. The next prime is 3020683. The reversal of 3020681 is 1860203.

3020681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1860203 = 587 ⋅3169.

It is a cyclic number.

It is not a de Polignac number, because 3020681 - 2⁶ = 3020617 is a prime.

It is a super-2 number, since 2×3020681² = 18249027407522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3020683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14561 + ... + 14766.

It is an arithmetic number, because the mean of its divisors is an integer number (762528).

Almost surely, 2^3020681 is an apocalyptic number.

It is an amenable number.

3020681 is a deficient number, since it is larger than the sum of its proper divisors (29431).

3020681 is a wasteful number, since it uses less digits than its factorization.

3020681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29430.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 3020681 is about 1738.0106443863. The cubic root of 3020681 is about 144.5556113102. Note that the first 3 decimals are identical.

Adding to 3020681 its reverse (1860203), we get a palindrome (4880884).

The spelling of 3020681 in words is "three million, twenty thousand, six hundred eighty-one".