2841016921 has 2 divisors, whose sum is σ = 2841016922. Its totient is φ = 2841016920.

The previous prime is 2841016901. The next prime is 2841016939. The reversal of 2841016921 is 1296101482.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2123366400 + 717650521 = 46080^2 + 26789^2 .

It is a cyclic number.

It is not a de Polignac number, because 2841016921 - 2⁵ = 2841016889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2841016901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1420508460 + 1420508461.

It is an arithmetic number, because the mean of its divisors is an integer number (1420508461).

Almost surely, 2^2841016921 is an apocalyptic number.

It is an amenable number.

2841016921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2841016921 is an equidigital number, since it uses as much as digits as its factorization.

2841016921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 2841016921 is about 53301.1906152198. The cubic root of 2841016921 is about 1416.3087561324.

The spelling of 2841016921 in words is "two billion, eight hundred forty-one million, sixteen thousand, nine hundred twenty-one".