2210984891 has 2 divisors, whose sum is σ = 2210984892. Its totient is φ = 2210984890.

The previous prime is 2210984873. The next prime is 2210984927. The reversal of 2210984891 is 1984890122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2210984891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2210984291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105492445 + 1105492446.

It is an arithmetic number, because the mean of its divisors is an integer number (1105492446).

Almost surely, 2^2210984891 is an apocalyptic number.

2210984891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210984891 is an equidigital number, since it uses as much as digits as its factorization.

2210984891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 2210984891 is about 47021.1111204319. Note that the first 4 decimals coincide. The cubic root of 2210984891 is about 1302.7525290184.

The spelling of 2210984891 in words is "two billion, two hundred ten million, nine hundred eighty-four thousand, eight hundred ninety-one".