1773085997 has 2 divisors, whose sum is σ = 1773085998. Its totient is φ = 1773085996.

The previous prime is 1773085987. The next prime is 1773086027. The reversal of 1773085997 is 7995803771.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1697934436 + 75151561 = 41206^2 + 8669^2 .

It is an emirp because it is prime and its reverse (7995803771) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1773085997 - 2¹² = 1773081901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1773085987) 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, 886542998 + 886542999.

It is an arithmetic number, because the mean of its divisors is an integer number (886542999).

Almost surely, 2^1773085997 is an apocalyptic number.

It is an amenable number.

1773085997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1773085997 is an equidigital number, since it uses as much as digits as its factorization.

1773085997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The square root of 1773085997 is about 42108.0277025652. The cubic root of 1773085997 is about 1210.3470982460.

The spelling of 1773085997 in words is "one billion, seven hundred seventy-three million, eighty-five thousand, nine hundred ninety-seven".