989833043 has 2 divisors, whose sum is σ = 989833044. Its totient is φ = 989833042.

The previous prime is 989833021. The next prime is 989833049. The reversal of 989833043 is 340338989.

It is a strong prime.

It is an emirp because it is prime and its reverse (340338989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 989833043 - 2⁶ = 989832979 is a prime.

It is not a weakly prime, because it can be changed into another prime (989833049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494916521 + 494916522.

It is an arithmetic number, because the mean of its divisors is an integer number (494916522).

Almost surely, 2^989833043 is an apocalyptic number.

989833043 is a deficient number, since it is larger than the sum of its proper divisors (1).

989833043 is an equidigital number, since it uses as much as digits as its factorization.

989833043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 47.

The square root of 989833043 is about 31461.6122123454. The cubic root of 989833043 is about 996.5994637944.

The spelling of 989833043 in words is "nine hundred eighty-nine million, eight hundred thirty-three thousand, forty-three".