3072021 has 8 divisors (see below), whose sum is σ = 4163424. Its totient is φ = 2014320.

The previous prime is 3072001. The next prime is 3072029. The reversal of 3072021 is 1202703.

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

It is not a de Polignac number, because 3072021 - 2¹⁰ = 3070997 is a prime.

It is a Curzon number.

3072021 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3072029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8211 + ... + 8576.

It is an arithmetic number, because the mean of its divisors is an integer number (520428).

Almost surely, 2^3072021 is an apocalyptic number.

It is an amenable number.

3072021 is a deficient number, since it is larger than the sum of its proper divisors (1091403).

3072021 is a wasteful number, since it uses less digits than its factorization.

3072021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16851.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 3072021 is about 1752.7181747218. The cubic root of 3072021 is about 145.3699786718.

Adding to 3072021 its reverse (1202703), we get a palindrome (4274724).

The spelling of 3072021 in words is "three million, seventy-two thousand, twenty-one".