1989322339 has 2 divisors, whose sum is σ = 1989322340. Its totient is φ = 1989322338.

The previous prime is 1989322319. The next prime is 1989322369. The reversal of 1989322339 is 9332239891.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1989322339 is a prime.

It is a super-3 number, since 3×1989322339³ (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1989322292 and 1989322301.

It is not a weakly prime, because it can be changed into another prime (1989322319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 994661169 + 994661170.

It is an arithmetic number, because the mean of its divisors is an integer number (994661170).

Almost surely, 2^1989322339 is an apocalyptic number.

1989322339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1989322339 is an equidigital number, since it uses as much as digits as its factorization.

1989322339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 49.

The square root of 1989322339 is about 44601.8199068155. The cubic root of 1989322339 is about 1257.6748795225.

The spelling of 1989322339 in words is "one billion, nine hundred eighty-nine million, three hundred twenty-two thousand, three hundred thirty-nine".