803159989 has 2 divisors, whose sum is σ = 803159990. Its totient is φ = 803159988.

The previous prime is 803159983. The next prime is 803159993. The reversal of 803159989 is 989951308.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684240964 + 118919025 = 26158^2 + 10905^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-803159989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (803159983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 401579994 + 401579995.

It is an arithmetic number, because the mean of its divisors is an integer number (401579995).

Almost surely, 2^803159989 is an apocalyptic number.

It is an amenable number.

803159989 is a deficient number, since it is larger than the sum of its proper divisors (1).

803159989 is an equidigital number, since it uses as much as digits as its factorization.

803159989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 699840, while the sum is 52.

The square root of 803159989 is about 28340.0774346155. The cubic root of 803159989 is about 929.5384417188.

The spelling of 803159989 in words is "eight hundred three million, one hundred fifty-nine thousand, nine hundred eighty-nine".