3005332921 has 2 divisors, whose sum is σ = 3005332922. Its totient is φ = 3005332920.

The previous prime is 3005332907. The next prime is 3005332949. The reversal of 3005332921 is 1292335003.

It is an a-pointer prime, because the next prime (3005332949) can be obtained adding 3005332921 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2812817296 + 192515625 = 53036^2 + 13875^2 .

It is a cyclic number.

It is not a de Polignac number, because 3005332921 - 2²¹ = 3003235769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3005332921.

It is not a weakly prime, because it can be changed into another prime (3005332621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1502666460 + 1502666461.

It is an arithmetic number, because the mean of its divisors is an integer number (1502666461).

Almost surely, 2^3005332921 is an apocalyptic number.

It is an amenable number.

3005332921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3005332921 is an equidigital number, since it uses as much as digits as its factorization.

3005332921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 3005332921 is about 54820.9168201335. The cubic root of 3005332921 is about 1443.1036647519.

Adding to 3005332921 its reverse (1292335003), we get a palindrome (4297667924).

The spelling of 3005332921 in words is "three billion, five million, three hundred thirty-two thousand, nine hundred twenty-one".