1980897283 has 2 divisors, whose sum is σ = 1980897284. Its totient is φ = 1980897282.

The previous prime is 1980897263. The next prime is 1980897293. The reversal of 1980897283 is 3827980891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1980897283 - 2²⁹ = 1444026371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1980897263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 990448641 + 990448642.

It is an arithmetic number, because the mean of its divisors is an integer number (990448642).

Almost surely, 2^1980897283 is an apocalyptic number.

1980897283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1980897283 is an equidigital number, since it uses as much as digits as its factorization.

1980897283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 1980897283 is about 44507.2722484764. The cubic root of 1980897283 is about 1255.8968913001.

The spelling of 1980897283 in words is "one billion, nine hundred eighty million, eight hundred ninety-seven thousand, two hundred eighty-three".