2198491927 has 2 divisors, whose sum is σ = 2198491928. Its totient is φ = 2198491926.

The previous prime is 2198491909. The next prime is 2198491951. The reversal of 2198491927 is 7291948912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2198491927 - 2¹¹ = 2198489879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2198491907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1099245963 + 1099245964.

It is an arithmetic number, because the mean of its divisors is an integer number (1099245964).

Almost surely, 2^2198491927 is an apocalyptic number.

2198491927 is a deficient number, since it is larger than the sum of its proper divisors (1).

2198491927 is an equidigital number, since it uses as much as digits as its factorization.

2198491927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 52.

The square root of 2198491927 is about 46888.0787300994. The cubic root of 2198491927 is about 1300.2941990961.

The spelling of 2198491927 in words is "two billion, one hundred ninety-eight million, four hundred ninety-one thousand, nine hundred twenty-seven".