1828980689 has 2 divisors, whose sum is σ = 1828980690. Its totient is φ = 1828980688.

The previous prime is 1828980667. The next prime is 1828980691. The reversal of 1828980689 is 9860898281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1405650064 + 423330625 = 37492^2 + 20575^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828980689 - 2¹² = 1828976593 is a prime.

Together with 1828980691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1828980289) 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, 914490344 + 914490345.

It is an arithmetic number, because the mean of its divisors is an integer number (914490345).

Almost surely, 2^1828980689 is an apocalyptic number.

It is an amenable number.

1828980689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1828980689 is an equidigital number, since it uses as much as digits as its factorization.

1828980689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 59.

The square root of 1828980689 is about 42766.5837892156. The cubic root of 1828980689 is about 1222.9340580293.

The spelling of 1828980689 in words is "one billion, eight hundred twenty-eight million, nine hundred eighty thousand, six hundred eighty-nine".