989833199 has 2 divisors, whose sum is σ = 989833200. Its totient is φ = 989833198.

The previous prime is 989833189. The next prime is 989833219. The reversal of 989833199 is 991338989.

It is a weak prime.

It is an emirp because it is prime and its reverse (991338989) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 989833199 - 2¹² = 989829103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989833189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494916599 + 494916600.

It is an arithmetic number, because the mean of its divisors is an integer number (494916600).

Almost surely, 2^989833199 is an apocalyptic number.

989833199 is a deficient number, since it is larger than the sum of its proper divisors (1).

989833199 is an equidigital number, since it uses as much as digits as its factorization.

989833199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 59.

The square root of 989833199 is about 31461.6146915571. The cubic root of 989833199 is about 996.5995161498.

The spelling of 989833199 in words is "nine hundred eighty-nine million, eight hundred thirty-three thousand, one hundred ninety-nine".