1673573249 has 2 divisors, whose sum is σ = 1673573250. Its totient is φ = 1673573248.

The previous prime is 1673573191. The next prime is 1673573261. The reversal of 1673573249 is 9423753761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1327873600 + 345699649 = 36440^2 + 18593^2 .

It is an emirp because it is prime and its reverse (9423753761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1673573249 - 2²⁰ = 1672524673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1673573849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836786624 + 836786625.

It is an arithmetic number, because the mean of its divisors is an integer number (836786625).

Almost surely, 2^1673573249 is an apocalyptic number.

It is an amenable number.

1673573249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1673573249 is an equidigital number, since it uses as much as digits as its factorization.

1673573249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 952560, while the sum is 47.

The square root of 1673573249 is about 40909.3296082935. The cubic root of 1673573249 is about 1187.2665762285.

The spelling of 1673573249 in words is "one billion, six hundred seventy-three million, five hundred seventy-three thousand, two hundred forty-nine".