2028849859 has 2 divisors, whose sum is σ = 2028849860. Its totient is φ = 2028849858.

The previous prime is 2028849857. The next prime is 2028849869. The reversal of 2028849859 is 9589488202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2028849859 - 2¹ = 2028849857 is a prime.

Together with 2028849857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2028849857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014424929 + 1014424930.

It is an arithmetic number, because the mean of its divisors is an integer number (1014424930).

Almost surely, 2^2028849859 is an apocalyptic number.

2028849859 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028849859 is an equidigital number, since it uses as much as digits as its factorization.

2028849859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3317760, while the sum is 55.

The square root of 2028849859 is about 45042.7558992564. The cubic root of 2028849859 is about 1265.9502427063.

The spelling of 2028849859 in words is "two billion, twenty-eight million, eight hundred forty-nine thousand, eight hundred fifty-nine".