989933053 has 2 divisors, whose sum is σ = 989933054. Its totient is φ = 989933052.

The previous prime is 989933011. The next prime is 989933083. The reversal of 989933053 is 350339989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 572262084 + 417670969 = 23922^2 + 20437^2 .

It is an emirp because it is prime and its reverse (350339989) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-989933053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 989932988 and 989933006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989933083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494966526 + 494966527.

It is an arithmetic number, because the mean of its divisors is an integer number (494966527).

Almost surely, 2^989933053 is an apocalyptic number.

It is an amenable number.

989933053 is a deficient number, since it is larger than the sum of its proper divisors (1).

989933053 is an equidigital number, since it uses as much as digits as its factorization.

989933053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 787320, while the sum is 49.

The square root of 989933053 is about 31463.2015694525. The cubic root of 989933053 is about 996.6330272175.

The spelling of 989933053 in words is "nine hundred eighty-nine million, nine hundred thirty-three thousand, fifty-three".