3026721 has 8 divisors (see below), whose sum is σ = 4044160. Its totient is φ = 2013552.

The previous prime is 3026717. The next prime is 3026767. The reversal of 3026721 is 1276203.

It is a happy number.

3026721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3026721 - 2² = 3026717 is a prime.

It is a super-2 number, since 2×3026721² = 18322080023682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3026021) 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 7 ways as a sum of consecutive naturals, for example, 1416 + ... + 2838.

It is an arithmetic number, because the mean of its divisors is an integer number (505520).

Almost surely, 2^3026721 is an apocalyptic number.

It is an amenable number.

3026721 is a deficient number, since it is larger than the sum of its proper divisors (1017439).

3026721 is a wasteful number, since it uses less digits than its factorization.

3026721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 3026721 is about 1739.7473954572. The cubic root of 3026721 is about 144.6518958447.

The spelling of 3026721 in words is "three million, twenty-six thousand, seven hundred twenty-one".