989000773 has 2 divisors, whose sum is σ = 989000774. Its totient is φ = 989000772.

The previous prime is 989000741. The next prime is 989000777. The reversal of 989000773 is 377000989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 519065089 + 469935684 = 22783^2 + 21678^2 .

It is a cyclic number.

It is not a de Polignac number, because 989000773 - 2⁵ = 989000741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (989000777) 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, 494500386 + 494500387.

It is an arithmetic number, because the mean of its divisors is an integer number (494500387).

Almost surely, 2^989000773 is an apocalyptic number.

It is an amenable number.

989000773 is a deficient number, since it is larger than the sum of its proper divisors (1).

989000773 is an equidigital number, since it uses as much as digits as its factorization.

989000773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 989000773 is about 31448.3826770154. The cubic root of 989000773 is about 996.3200656946.

The spelling of 989000773 in words is "nine hundred eighty-nine million, seven hundred seventy-three", and thus it is an aban number.