3002921 has 4 divisors (see below), whose sum is σ = 3106500. Its totient is φ = 2899344.

The previous prime is 3002917. The next prime is 3002933. The reversal of 3002921 is 1292003.

3002921 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 an emirpimes, since its reverse is a distinct semiprime: 1292003 = 37 ⋅34919.

It can be written as a sum of positive squares in 2 ways, for example, as 1210000 + 1792921 = 1100^2 + 1339^2 .

It is a cyclic number.

It is not a de Polignac number, because 3002921 - 2² = 3002917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3002921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3002911) 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, 51746 + ... + 51803.

It is an arithmetic number, because the mean of its divisors is an integer number (776625).

Almost surely, 2^3002921 is an apocalyptic number.

It is an amenable number.

3002921 is a deficient number, since it is larger than the sum of its proper divisors (103579).

3002921 is a wasteful number, since it uses less digits than its factorization.

3002921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103578.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3002921 is about 1732.8938224831. The cubic root of 3002921 is about 144.2717508579.

Adding to 3002921 its reverse (1292003), we get a palindrome (4294924).

The spelling of 3002921 in words is "three million, two thousand, nine hundred twenty-one".